Statistics

Record, Represent & Compare Data

1

Make a Tally Chart

Read the data and create tallies.

ItemTallyTotal
Red cars
Blue cars
White cars
Black cars
2

Read the Tally Chart

Use the tally chart to answer.

Which colour car was seen the most?

Red
Blue
White

How many more blue cars than white cars?

4
6
8

How many cars counted altogether?

32
34
36
3

Pets in Our Class

Use the picture graph to answer.

Dogs
Cats
Fish
Birds
1

Which pet is the most popular?

2

How many students have cats or dogs?

3

How many more dogs than birds?

4

How many pets were counted in total?

4

Match Data to Best Display

Match each type of data to the best display.

Favourite ice cream flavour
Number of books read each week
Types of trees in a park
Heights of students
Bar graph with numbers
Picture graph
Tally chart and bar graph
Bar graph with measurements
5

Favourite Colours Tally

Count the tallies.

ItemTallyTotal
Red
Blue
Green
Purple
6

Compare Data Sets

Answer about comparing data.

Class A: 8 like apples, 5 like bananas. Class B: 6 like apples, 9 like bananas. Who likes bananas more?

Class A
Class B

If Class A has 13 votes and Class B has 15, which class surveyed more people?

Class A
Class B
7

Compare Two Sets of Data

Compare the results.

Class A: Apples 8, Bananas 5, Oranges 7 Class B: Apples 6, Bananas 9, Oranges 5 Which fruit was most popular in each class?

Which class had more banana lovers? By how many?

If the classes combined, which fruit would be the overall favourite?

8

Create a Display

Use this data to create a picture graph or bar graph.

Monday = 3 books, Tuesday = 5, Wednesday = 2, Thursday = 6, Friday = 4. Draw your graph here. Include a title, labels and a key.

Draw here
9

Write Questions About Data

Write 3 questions that someone could answer using your graph.

Question 1: ___

Question 2: ___

Question 3: ___

10

Home Activity: Data Display

Collect and display data at home!

  • 1Count the types of food in your fridge (fruit, vegetables, dairy, etc.). Make a bar graph.
  • 2Track the weather for a week using a tally chart. Display your results.
  • 3Compare data with a friend or family member. Did you get similar results?
  • 4Create a picture graph using stickers or drawings to show your data.
11

Daily Weather Tally

Count tallies for one week's weather.

ItemTallyTotal
Sunny
Cloudy
Rainy
Windy
12

Classroom Library Tally

Count tallies for each book genre.

ItemTallyTotal
Adventure
Funny
Fact books
Animals
13

Lunch Items Tally

Count tallies for what students brought for lunch.

ItemTallyTotal
Sandwich
Rice
Salad
Leftovers
14

Books Read This Month

Each symbol = 2 books. Answer the questions.

Ana
Ben
Cam
Dee
Eli
1

Who read the most books?

2

How many books did Cam read (each symbol = 2)?

3

What is the total books read by all students?

15

Recycled Items This Week

Each symbol = 5 items. Answer the questions.

Paper
Plastic
Cans
Glass
1

Which material was recycled most?

2

How many plastic items were recycled (each = 5)?

3

What was the total number of items recycled?

16

Compare Data Sets — Set A

Compare two classes' data: Class A: Soccer 8, Swimming 5, Cricket 7; Class B: Soccer 6, Swimming 10, Cricket 4.

Which class has more soccer fans? By how many? ___

Which class has more swimming fans? By how many? ___

Total students in Class A: ___ Total in Class B: ___

Which sport would win if both classes combined their votes? ___

17

Compare Data Sets — Set B

Compare two groups: Group 1: Reading 9, Drawing 4, Sport 7; Group 2: Reading 5, Drawing 8, Sport 7.

Which group prefers reading? ___

Which activity got the same number in both groups? ___

Combined total for drawing: ___

Write one statement comparing the two groups: ___

18

Create a Tally Chart — Set A

Make a tally chart from this data.

Survey of 20 students' favourite seasons: Summer = 8, Autumn = 3, Winter = 4, Spring = 5. Draw the tally chart here:

Draw here
19

Create a Tally Chart — Set B

Record and create a tally chart.

Ask 15 people their favourite ice cream flavour. Choices: Chocolate, Vanilla, Strawberry, Other. Record your results in a tally chart:

Draw here
20

Create a Picture Graph

Draw a picture graph using this data.

Apples = 4, Bananas = 7, Oranges = 5, Grapes = 3. Each symbol = 1. Draw your picture graph with a title, labels and a key:

Draw here
21

Questions From Data — Set A

Write and answer questions about this data: Monday 12, Tuesday 8, Wednesday 15, Thursday 10, Friday 9.

Total for the week: ___

The day with the most: ___

Difference between highest and lowest: ___

Average (total ÷ 5): ___

22

Questions From Data — Set B

Write 3 interesting questions that could be answered from a bar graph of favourite colours.

Question 1: ___

Question 2: ___

Question 3: ___

Answer one of your questions: ___

23

Represent Data Two Ways

Show the same data two different ways.

Data: Dogs = 6, Cats = 4, Fish = 2, Birds = 3. Representation 1: Tally chart (draw it)

Draw here

Representation 2: Bar graph or picture graph (draw it)

Draw here
24

Sort: Best Graph Type for Each Data

Sort each type of data to the best display.

Recording live observations
Showing exact numbers clearly
Small data with categories to 10
Comparing two groups visually
Favourite sport with pictures
Heights of plants
Picture graph
Bar graph
Tally chart during collection
25

Data Differences

Find the difference between each pair of values.

7
15
?
4
12
?
6
10
?
8
20
?
5
13
?
9
17
?
26

Data Story

Use data to tell a story.

Write a short story about what the data shows: Cars: 14, Buses: 3, Bikes: 8, Walking: 5 ___

What question might have been asked to collect this data? ___

27

Data Journal Reflection

Write about working with data.

What is the most important thing when collecting data? ___

What makes a graph easy to read? ___

Describe how you would collect data to find out the most popular after-school activity: ___

28

Analyse a Graph Description

Analyse this graph: a bar graph shows books read per month: Jan=5, Feb=8, Mar=3, Apr=9, May=7, Jun=6.

Which month had the most books read? ___

Which month had the fewest? ___

Total books for the 6 months: ___

Average books per month (total ÷ 6): ___

29

Data Vocabulary Quiz

Circle the correct answer.

The most common value in a data set is the...

Mode
Mean
Median

The middle value when data is ordered is the...

Mode
Mean
Median

Adding all values and dividing by the count gives the...

Mode
Mean
Median

A data set with values: 3, 5, 7, 3, 9. The mode is...

3
5
7
30

Create a Two-Way Table

Organise data into a two-way table.

Survey data: 12 girls like sport, 8 boys like sport, 6 girls like art, 10 boys like art. Complete the table: Sport Art Total Girls ___ ___ ___ Boys ___ ___ ___ Total ___ ___ ___

31

Misleading Graphs

Think about what makes a graph misleading.

Why is it important to start a bar graph's y-axis at 0? ___

What happens if the y-axis scale is uneven? ___

Name one thing that could make a graph misleading: ___

32

Sort: Data About People or Things?

Sort each type of data.

Favourite colour
Daily temperature
Age of students
Height of trees
Sport preference
Rainfall in mm
Data about people
Data about things
33

Present Your Data Findings

Present your investigation results as a short report.

Our class investigated: ___

We found that: ___

This was surprising because: ___

Next time we would: ___

34

Data Totals

Find the total of each data set.

30
12
?
45
?
18
60
34
?
80
?
52
100
63
?
75
?
41
35

Reading Bar Graph Values

Fill in the missing data value.

5
10
15
25
?
12
36
48
60
?
8
16
24
32
?
36

Reading a Picture Graph — Set B

This pictograph uses ★ = 2 students. Red=★★★, Blue=★★★★★, Green=★★. Answer:

How many chose Red?

3
6
9

How many chose Blue?

5
10
15

Total students:

18
20
22
37

What Does the Graph Show?

A graph shows: Monday=20, Tuesday=15, Wednesday=25, Thursday=10, Friday=30. Answer:

Highest value:

Monday
Wednesday
Friday

Lowest value:

Tuesday
Thursday
Friday

Total for all days:

90
100
110
38

Which Graph to Use? — Set B

Circle the best graph type.

To show how data changes over time:

Bar graph
Line graph
Pictograph

To compare quantities of different categories:

Bar graph
Line graph
Scatter graph

To show data as parts of a whole:

Pie chart
Dot plot
Bar graph
39

Which Conclusion is Correct?

Use this data: Cats=10, Dogs=14, Birds=3, Fish=5. Circle the correct answer.

Which pet is most popular?

Cats
Dogs
Fish

How many students were surveyed in total?

30
32
35

Which conclusion is supported by the data?

Most students prefer cats
Dogs are more popular than cats
Fish and birds are equally popular
40

Sort Survey Questions to Data Categories

Sort each survey question into the correct data category.

What is your favourite fruit?
How many books did you read?
What sport do you prefer?
How many minutes did you exercise?
Categorical
Numerical — discrete
41

Sort: Primary or Secondary Data?

Sort each data collection method.

Surveying your classmates
Reading a government report
Counting cars outside your home
Using a library statistic
Timing your own activities
Finding data online
Primary data (collected yourself)
Secondary data (from another source)
42

Sort: Valid or Invalid Conclusion?

Sort each conclusion about pet data (Dogs=10, Cats=6, Fish=2, Birds=3).

Most students prefer dogs
Everyone hates fish
Fewer students chose birds than cats
Nobody has a dog
Fish is the least popular
Dogs are better than cats
Valid conclusion
Invalid conclusion
43

Record: Types of Transport to School

Survey 12 students. Record how they get to school.

ItemTallyTotal
Walk
Car
Bus
Bike
44

Class Test Scores

This graph shows scores on a spelling test.

10/10
8-9/10
6-7/10
Under 6
1

How many scored 10/10?

2

How many scored at least 8/10?

3

How many more students scored 8-9/10 than scored under 6?

45

Describe the Data

Use this pet data: Dogs=12, Cats=8, Fish=4, Birds=6, Rabbits=2. Answer each question.

Which was the most popular choice? ___

Which was the least popular choice? ___

How many more chose dogs than fish? ___

46

Read and Compare Data

Library books borrowed per day: Mon=8, Tue=12, Wed=15, Thu=6, Fri=9.

Which day had the most books borrowed? ___

How many books were borrowed on Monday and Tuesday combined? ___

Write one conclusion from the data:

47

Interpret a Table

Read this table and answer: Cats=8, Dogs=12, Fish=4, Birds=6, Rabbits=2.

Total animals: ___

Most popular: ___ Least popular: ___

How many more dogs than fish? ___

What fraction of all pets are dogs? ___

48

Graph Comparison

A pictograph and a bar graph show the same data. Compare them.

Which graph type is easier to read? ___ Why? ___

Which is more accurate for comparing exact numbers? ___

When would you choose a pictograph over a bar graph? ___

49

Create and Analyse

Create your own data display and analyse it.

My survey question: ___

Results: ___ = ___, ___ = ___, ___ = ___, ___ = ___

Display (draw your graph here):

Draw here

My conclusion: ___

50

Home Activity: News Data

Find data in a newspaper or news website!

  • 1Find a graph or table in a newspaper or news website. Cut it out or take a photo.
  • 2Write 3 questions and answers about the data.
  • 3What is the headline that goes with the data?
  • 4Do you agree with the conclusions? Why or why not?
51

Interpret a Bar Graph

Use the bar graph data to answer each question. Scores: Monday=8, Tuesday=5, Wednesday=9, Thursday=6, Friday=7.

Which day had the highest score?

Monday
Wednesday
Friday

What was the difference between the highest and lowest score?

3
4
5

On how many days was the score above 6?

2
3
4
52

Track the Data

Use tallies to record data from a survey. 20 students chose their favourite season.

ItemTallyTotal
Summer
Autumn
Winter
Spring
53

Sports Day Results

This graph shows how many students participated in each event.

Running
Jumping
Throwing
Swimming
1

Which event had the most participants?

2

How many participated in jumping and throwing?

3

How many students participated in total?

54

Create Questions from Data

Use this data to write 4 questions and answers. Books read: Ava=7, Ben=4, Cara=9, Dan=6.

Q1: ___ A1: ___

Q2: ___ A2: ___

Q3: ___ A3: ___

Q4: ___ A4: ___

55

Sort: Can This Data Be Graphed?

Sort each data set into Easy to graph or Hard to graph.

Favourite colours of 20 students
Temperature every second for an hour
Types of pets owned by families
Every heartbeat in a year
Favourite sports in Year 3
Exact weights of 100 people
Easy to graph (categorical)
Hard to graph (complex/continuous)
56

Data Analysis Challenge

Analyse this data set: Number of siblings — 0:5 students, 1:8 students, 2:6 students, 3:3 students.

How many students were surveyed? ___

What was the most common number of siblings? ___

Write one conclusion from the data:

57

Home Activity: Week Weather Watcher

Record and display the weather for one week!

  • 1Record the weather each day (sunny, cloudy, rainy, etc.) using tallies.
  • 2At the end of the week, make a bar graph or pictograph of your data.
  • 3Write 3 conclusions from your data.
  • 4Compare with a family member — did you agree on the weather description each day?
58

Read This Data Set

Use this data: Apples sold Mon=12, Tue=8, Wed=15, Thu=10, Fri=18. Answer each question.

On which day were the most apples sold?

Monday
Wednesday
Friday

What was the total sold on Monday and Tuesday?

18
20
22

On which day were the fewest sold?

Tuesday
Thursday
Monday
59

Find the Total from Two Data Sets

Add the two data values to find the total.

25
12
?
30
?
17
40
22
?
50
?
28
60
35
?
60

Match Data Type to Best Display

Match each data type to the best way to display it.

Favourite fruits of 20 students
Number of goals scored each week
Types of pets in the class
Books read per month over a year
Picture graph
Tally chart
Bar graph
Table with months
61

Interpret a Table

Use this table: Mon: 15, Tue: 8, Wed: 20, Thu: 12, Fri: 18.

Which day had the highest value? ___ Lowest? ___

What is the difference between highest and lowest? ___

Total for all 5 days: ___ Average (rough estimate): ___

Write one conclusion from the data:

62

Sort: Primary or Secondary Data?

Sort each example into data you collect yourself (primary) or data someone else collected (secondary).

Survey your classmates about pets
Use the Bureau of Meteorology rainfall data
Count vehicles passing your house
Read a graph from a textbook
Measure your family members' heights
Use census data from the internet
Primary data
Secondary data
63

Create a Data Story

Use data to tell a story.

I collected data about: ___

The most surprising thing I found was: ___

If I extended the investigation, I would also find out: ___

64

Library Books Borrowed by Genre

This graph shows library books borrowed this month.

Adventure
Science
Funny
Fantasy
1

Which genre was borrowed most?

2

How many more adventure books than science books were borrowed?

3

What was the total books borrowed?

65

Home Activity: Favourite Things Investigation

Investigate your family's favourites!

  • 1Ask your family: what is your favourite meal, film, game and season?
  • 2Record all responses in a table.
  • 3Which category had the most agreement? Which had most variation?
  • 4Display the results in a graph and write 2 conclusions.
66

Mode and Range

Use this data: 3, 7, 5, 7, 9, 4, 7, 2.

What is the mode (most common value)?

5
7
9

What is the range (largest minus smallest)?

6
7
8

How many values are in this data set?

6
7
8
67

Range Bonds

Find the missing value to give each range.

10
3
?
15
?
4
8
2
?
12
?
5
20
7
?
68

Statistical Terms

Match each statistical term to its definition.

Mode
Range
Total
Data
Information collected
Sum of all values
Largest minus smallest
Most common value
69

Find Mode and Range

Use scores: 8, 5, 9, 5, 7, 5, 10, 6.

Mode: ___ Range: ___

If one more score of 9 is added, does the mode change? Why?

70

Shoe Sizes in Year 3

Record these shoe sizes from the class.

ItemTallyTotal
Size 3
Size 4
Size 5
Size 6
71

Goals Scored Each Week

This graph shows goals scored over 5 weeks.

Week 1
Week 2
Week 3
Week 4
Week 5
1

What is the mode number of goals?

2

What is the range?

3

How many goals were scored in total?

72

Sort: Useful Data or Not Useful?

For a survey about favourite fruits, sort each piece of information.

10 students chose apples
A student's shoe size
5 chose mangoes
The teacher's birthday
3 students are absent
Total fruits chosen
Useful data
Not useful data
73

Outliers in Data

An outlier is a value far from the others.

Data: 5, 6, 5, 7, 5, 6, 25. Which is the outlier? ___

How does this outlier affect the range?

Give a real-life example where an outlier might occur:

74

Home Activity: Data Detective Journal

Collect and analyse data every day for a week!

  • 1Each day, count something (birds seen, pages read, steps taken).
  • 2At week end, find the mode and range.
  • 3Draw a graph of daily counts.
  • 4Write 2 conclusions from your data.
75

Interpret Two-Way Tables

Use this table. Year 3: Dogs=8, Cats=6. Year 4: Dogs=5, Cats=10.

Which year level has more cat lovers?

Year 3
Year 4
Equal

Across both years, how many chose dogs?

11
13
15

Which year chose more animals in total?

Year 3
Year 4
Equal
76

Two-Group Data Totals

Find missing totals from two groups.

25
14
?
30
?
18
40
23
?
50
?
29
77

Match Conclusion to Data

Match each conclusion to the data that supports it.

Dogs beat cats 13 to 11
Both age groups surveyed
More cat lovers in Year 4
Year 3 had more students
More students were surveyed
Year 3: 14 students, Year 4: 15 students
Year 3 and Year 4 were both included
Dogs more popular overall
Year 4 cats=10, Year 3 cats=6
Total 29 students responded
78

Design a Two-Way Table

Create a two-way table to record class data.

Categories: Boys and Girls prefer: ___ and ___

Fill in your table: | Boys | Girls | Total ___ | ___ | ___ | ___ ___ | ___ | ___ | ___ Total| ___ | ___ | ___

One conclusion from your table:

79

Sort Conclusions: Supported or Not?

Data: Class A prefers summer (8/15), Class B prefers winter (9/14). Sort each conclusion.

Most Class A students prefer summer
Everyone prefers summer
Class B likes winter more than summer
Nobody in Class B likes summer
Both classes were surveyed
The classes have exactly the same preferences
Supported by data
Not supported by data
80

Favourite Sports by Year Level

This graph shows sport preferences in Year 3 and Year 4 combined.

Soccer
Swimming
Cricket
Gymnastics
1

Which sport was most popular?

2

How many more chose soccer than gymnastics?

3

If equal numbers of Year 3 and Year 4 students were surveyed, how many from each year?

81

Write a Complete Data Report

Use the sports data above to write a complete statistical report.

Investigation question: ___

Total students surveyed: ___ Most popular sport: ___

Write 3 conclusions from the data:

One further question this raises:

82

Home Activity: Two-Way Table Challenge

Create a two-way table with your family!

  • 1Survey your family: favourite season AND favourite meal.
  • 2Create a two-way table showing results.
  • 3Write 3 conclusions from your table.
  • 4What patterns did you notice between food preference and season preference?
83

Reading a Table

Use this data: Maths=18, English=15, Science=12, Art=10. Answer each question.

Which subject has the most votes?

English
Maths
Science

How many more votes does Maths have than Art?

6
8
10

What is the total number of votes?

50
55
60
84

Tally: Types of Animals at the Zoo

Record these zoo animal counts in a tally chart.

ItemTallyTotal
Lions
Elephants
Birds
Snakes
85

Ice Cream Flavours Sold

This graph shows ice cream flavours sold today.

Chocolate
Vanilla
Strawberry
Mango
1

Which flavour was most popular?

2

How many chocolate and vanilla were sold combined?

3

What was the total number of ice creams sold?

86

Match Data Vocabulary

Match each word to its meaning.

Survey
Tally
Data
Graph
A visual display of information
Marks used to count quickly
Information collected
A set of questions asked to collect information
87

Data Set Totals

Find the missing value in each data pair.

28
13
?
35
?
19
42
24
?
56
?
31
70
45
?
88

Sort: Category or Numerical Data?

Sort each type of data.

Favourite colour
Number of siblings
Type of pet
Height in cm
Preferred sport
Score on a test
Categorical data (names/groups)
Numerical data (numbers/amounts)
89

Compare Two Graphs

Two classes voted on favourite lunch foods. Class A: Sandwich=10, Wrap=6, Salad=4. Class B: Sandwich=7, Wrap=9, Salad=5.

Which class preferred sandwiches more? ___

Which food was most popular across both classes? ___

Combined total of votes for wraps: ___

Write one conclusion comparing the two classes:

90

Data Patterns

Complete the missing values in each data sequence.

2
4
6
10
?
5
10
15
25
?
3
6
9
12
?
91

Summarise a Data Set

Summarise this data in sentences. Trees: Gum=12, Wattle=8, Banksia=5, Grevillea=3.

Total trees counted: ___

Most common tree: ___ Least common: ___

Write 2 sentences summarising what the data shows:

92

Home Activity: Graph from Life

Create a data display from real life at home!

  • 1Count how many items of each colour are in your wardrobe. Make a tally chart.
  • 2Survey your family about their favourite meals and display in a bar graph.
  • 3Track how many steps you walk each day for 5 days. Make a line graph.
  • 4Find a graph in a book or newspaper. Write 3 questions you could answer from it.