Statistical Graphs

Statistics 1: Types of Graphs

by Melissa CHAPMAN

Poll

Rate your understanding of graph types and reading graphs before the lesson.

• 1 

  No idea

• 2

  I know some of it but couldn't explain, and need some help from the teacher

• 3

  I know it and can do it on my own

• 4

  I know it and could explain to someone else

​Tally Chart

​A tally chart assists in counting a total after the observation has concluded.

​From a tally chart, the observer collates data to analyse where you can then create many types of graphs to display this data.

​Bar and Column Graph

​While often called the same thing these are two different types of graphs. Columns go up and down (vertical), bars go side to side (horizontal).

Multiple Choice

This is a picture of a 

• Bar chart
• Pie chart
• Line chart
• Column chart

Multiple Choice

This is a picture of a 

• Bar chart
• Pie chart
• Line chart
• Column chart

Multiple Choice

A chart that has a series of vertical columns each representative of a data series is a __________ chart.

• Pie
• Column
• Line
• Stacked Bar

Multiple Choice

What is the title of this column graph?

• Wildlife

• Orange and Blue

• Dolphin Whales

• Wildlife Population

Multiple Choice

What was the recorded population of dolphins in 2018?

• 60

• 78

• 110

• 65

Multiple Choice

In what year was the highest population of whales recorded?

• 2017

• 2022

• 2019

• 2020

• 2021

Multiple Choice

How many children like hamsters?

• 0
• 2
• 4
• 6

​Pie Graph

This shows parts of a whole separated into percentages.

​

Using a tally chart you would find the total and divide each part of the total then multiply by 100 to turn it into a percentage.​

Multiple Choice

What percentage does a whole circle graph represent?

• 360%
• 90%
• 50%
• 100%

Multiple Choice

Another way of saying 50%

• Half
• a quarter
• 3 quarters
• Just under

Multiple Choice

25% of a circle is equal to:

• one-fifth

• a quarter

• a half

• two fifth

Multiple Choice

The pie chart shows the colours of 32 beads. How many green beads are there?

• 90

• 8

• 11

• 9

Multiple Choice

Which Continent is home to 13% of wild cats?

• Asia
• Africa
• North America
• South America

Multiple Choice

Which pie chart represents the same data as the table?

Multiple Choice

These pie charts show how people travel to work in 2 towns. In which town do more people travel to work by bike?

• town A

• town B

• both the same

• impossible to say

​Pictograph

​Instead of using an axis with numbers, it uses pictures to represent a particular number of items.

​It must have a scale to show the numerical value for each picture.

Multiple Choice

How many votes did reading receive?

• 2

• 4

• 6

• 8

Multiple Choice

How many total votes were collected?

• 5
• 10
• 15
• 20

Multiple Choice

How many students like Spring the best?

• 25
• 50
• 45
• 60

​Dot Plot

​A Dot Plot is a graphical display of data using dots.

​One dot represents one measure at that category or value.

Multiple Choice

How many people have two or less books in their desk?

• 4
• 5
• 6
• 7

Multiple Choice

How many total students are in the science class?

• 13
• 6
• 27
• 25

Multiple Choice

What is the highest score in the class?

• 88%
• 100%
• 13
• 98%

Multiple Choice

Which statement best describes the data shown in the dot plot?

• The peak of the data is at 35

• The data are clustered from 30 to 32

• The data distribution has gaps

• The data distribution is symmetrical

​Line Graphs

​Line graphs are drawn by connecting plotted points with a straight line.

​​They are used to show trends or comparisons in data sets.

​The x-axis runs horizontally expressing an independent variable, where the y-axis is vertically expressing a dependant variable.

Multiple Choice

What is the name of this graph?

• line plot
• line graph
• bar graph
• frequency table

Multiple Choice

The X axis is _______?

• vertical
• diagonal
• criss-cross
• horizontal

Multiple Choice

The Y axis is _______?

• Vertical
• Horizontal
• criss-cross
• diagonal

Multiple Choice

A restaurant recorded the number of pizzas sold each month for one year. The data are shown in the graph below. During which month did the restaurant sell 40 pizzas?

• March

• May

• July

• August

Multiple Choice

When was the greatest amount of shoppers at the store?

• 10am
• 1pm
• 6pm
• 2pm

Multiple Choice

What was the bear population in 2001?

• 40
• 45
• 50
• 55

Multiple Choice

What is the general trend of this line graph?

• The more you mow, the less money you make.
• You make the same amount of money regardless of how long you mow.
• The more you mow, the more money you make.
• Mowing is dangerous.

Multiple Choice

At what rate did the temperature decrease between the 20th and 25th minutes of the experiment?

• 10°C in 5 min

• 10°C in 10 min

• 5°C in 5 min

• 5°C in 10 min

Multiple Choice

Which month had the biggest difference between the high and low temperatures?

• January

• April

• October

• November

​Stem and Leaf Plot

​A Stem and Leaf Plot is a special table where each data value is split into a "stem" (the first digit or digits) and a "leaf" (usually the last digit).

Multiple Choice

A florist records the amount of money he spent on gasoline each week to deliver orders. The list shows the data for 16 weeks.
 32, 38, 40, 44, 44, 46, 49, 53, 55, 58, 62, 65, 68, 70, 72, 81
 He put the data in a stem-and-leaf plot. What number did he leave out of the stem-and-leaf plot?
   

• 32
• 44
• 65
• 81

Multiple Choice

How many students scored more than 80%?

• 2

• 13

• 6

• 7

Multiple Choice

How many students got a perfect score on the test?

• 0
• 2
• 6
• 1

Multiple Choice

How many baseballs were thrown 50 or more feet?

• 5
• 4
• 13
• 8

Multiple Choice

How many games did the team play?

• 15
• 12
• 24
• 14

Multiple Choice

What is the minimum in this data set?

• 0
• 4
• 9
• 40

Multiple Choice

What is Mary's lowest test score?

• 49

• 40

• 42

• 45

Multiple Choice

How many times did Mary score below a 60 on her tests?

• 4

• 5

• 3

• 0

Multiple Choice

What is the highest quiz grade in the stem and leaf plot?

• 9
• 26
• 92
• 96

Poll

Rate your understanding of graph types and reading graphs after the lesson.

• 1 

  No idea

• 2

  I know some of it but couldn't explain, and need some help from the teacher

• 3

  I know it and can do it on my own

• 4

  I know it and could explain to someone else