Box Plots and Histograms

Graphing with Boxplots

Labelling

Drag the correct label to each value.

Drag labels to their correct position on the image

Q3

Med(Q2)

Q1

Min

Max

Match

Match the following

• Range

• Interquartile Range (IQR)

• Q2

• Q1

• Q3

Max - Min

Q3 - Q1

Median

Median of the LOWER half

Median of the UPPER half

• Max - Min

• Q3 - Q1

• Median

• Median of the LOWER half

• Median of the UPPER half

Math Response

What is the range of the data?

Type answer here

Correct Answer: 10

Deg^°

Rad

A statistical question....

• Requires you to gather data

• Is not a yes or no question

• One that can be answered by collecting multiple data and where there will be variability in that data.

Multiple Choice

Is the following question statistical or non statistical?
On average, how many water bottles does every class go through daily?

• Statistical
• Non Statistical

Multiple Choice

Is the following question statistical or non statistical?

How many students in our school prefer chocolate chip over oatmeal raisin?

• Statistical

• Non Statistical

Multiple Choice

Is the following question statistical or non statistical?
How many cars are in the parking lot?

• Statsitical
• Non Statistical

Multiple Choice

Is the following question statistical or non statistical?
How tall are the students in our class?

• Statistical
• Non Statistical

Multiple Choice

A question that asks about a set of data is called a ________________________.

• attribute

• frequency

• statistical question

• data

Dot Plots

Graphing with Dot Plots

Dot Plots

Each dot represents one answer. In the sheet to the right, 3 students answered that they had 0 cookies at lunch. 5 said they had 2 cookies.

Multiple Choice

What is the maximum amount of goals scored?

• 3

• 1

• 0

• 7

Multiple Choice

What is the median number of goals scored?

• 3

• 3.5

• 4

• 5

Multiple Choice

How many people exercised for at least 3 hours?

• 2

• 7

• 6

• 3

Multiple Choice

What was the median number of hours spent playing video games?

• 5

• 6

• 7

• 9

Outlier

If there is a number far from the normal set, we call that the outlier.

1,10,12,15,16

Our outlier is 1

Multiple Choice

What is the outlier for this data?

• 90

• 96

• 102

• 108

Multiple Choice

How many students took the quiz? (count the dots)

• 15

• 20

• 12

• 17

Shape of a dot plot graph

Normal is like a camel hump or an upside down U.

Skewed Right

Think of it like a tail. The if the numbers decrease on the right side of a graph, the tail goes to the right, and the graph is skewed right.

Skewed Left

Our tail trails to the left, like a dinosaur. We say that these graphs are skewed left.

Multiple Choice

Are these dot plots symmetric?

• Yes
• No

Multiple Choice

Is the Cars dot plot skewed left or right?

• left
• right

We can use the dot plot to find Mean, Median, and Mode

Remember, write out all your numbers in numerical order then solve the problem.

Multiple Choice

What is the median of the data?

• 2

• 1

• 3

• 12

Multiple Choice

What is the range of the test scores?

• 15
• 100
• 6
• 10

Multiple Choice

What is the MODE of this data?

• 90
• 85, 90, and 95
• 85 and 95
• None

Multiple Choice

How many students scored between a 86 and a 90?

• 1
• 3
• 6
• 10

Multiple Choice

How many people watched more than 25 hours of TV last week?

• 0
• 10
• 38
• 42

Multiple Choice

Which interval has 400 employees?

• 33-43
• 0-10
• 77-87
• 66-76