1.4 Measures of Center and Measures of Spread

1.4 Measures of Center and Measures of Spread

Measures of Center

Multiple Choice

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the MODE.

12,10,10,10,13,12,11,13,10

• 10

• 12

• 10 and 12

• No Mode

Multiple Choice

The number of text messages that Isaac received each day for a week is shown: 47, 49, 54, 50, 48, 47, 55
What is the mean and median

• Mean=49
  Median=54
• Mean=49 
  Median=50
• Mean=50 
  Median=54
• Mean=50
  Median=49

Multiple Choice

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5
• 6
• 9
• 11

Multiple Choice

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24
• 36
• 39
• 52

Multiple Choice

To find the average of a set of numbers, add up all the items and divide by...

• 2
• The minimum
• The maximum
• The number of items

Multiple Choice

A data set can have more than one mode

• True
• False

Multiple Choice

A data set can have more than one median?

• True
• False

Standard Deviation

A measure of how far the numbers is a dataset are from the mean.

See this video for calculator help: https://youtu.be/ptQ6IKVYP6I

Multiple Choice

Find the IQR using the following data. Remember to put the data in order!! Please don't do this one in your head!!!!

7, 3, 12, 4, 10, 5, 12, 6, 7, 8

• 6.5

• 4.5

• 5

• 6

Multiple Choice

Find the interquartile range using the following data.

12, 13, 15, 15, 16, 17, 19, 21, 22

• 34

• 16

• 6

• 10

Multiple Choice

What is the interquartile range of the data set below?

3, 5, 6, 6, 7, 8, 9

• 3

• 6

• 2

• 8

Multiple Choice

Find the interquartile range using the following.
Minimum:  1
Q1:  3
Median:  5
Q3:  7
Maximum:  9

• 8
• 4
• 5
• 10

Multiple Choice

What is the standard deviation for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89
• 10.1
• 7.26
• 9

Multiple Choice

What is the standard deviation for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89

• 10.1

• 7.26

• 9

Multiple Choice

What is the standard deviation for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89

• 10.1

• 7.26

• 9

Multiple Choice

18, 4, 12, 2, 13, 18, 2, 2, 10
What is the range of this data set?

• 9
• 20
• 2
• 16

Multiple Choice

What is the mode of this data set?

• 9
• 43
• 53
• 49

Multiple Choice

What is the range of this data set?

• 10
• 8
• 4
• line plot