Data & Statistics Review

Which of the following is an example of a statistical question?

• What color shirt are you wearing?
• How many dogs do you have?
• What are the favorite ice cream flavors of CMS 6th graders?
• Is it a nice day outside?

What is the median of the following data set:
1, 3, 4, 4, 5, 6, 7

• 1
• 4
• 5
• 7

What is the mode of the following data set:
1, 6, 8, 10, 14

• 1
• 6
• 10
• There is no mode

What does it mean for a graph of data to be SKEWED LEFT?

• Most of the data is grouped to the left side
• Most of the data is grouped to the right side
• Most of the data is in the middle
  (draw a line down the middle and both sides look the same)

What is the interquartile range of 2nd Periods test scores?

• 12

• 9

• 15

• 80

Find the median

• 3
• 4
• 5
• 6

Which student has the greater inter-quartile range (IQR) of test scores? What is the IQR?

• Amy has the greater IQR; the IQR is 13

• Amy has the greater IQR; the IQR is 8

• Ed has the greater IQR; the IQR is 20

• Ed has the greater IQR; the IQR is 12

How many people between the ages 0 and 10 prefer M&Ms?

• About 30

• About 5

• About 27

• About 45

Which interval shows the greatest number of pets?

• 15-19
• 0-4
• 5-9
• 10-14

What is the range of the set of data?

• 70
• 65
• 80
• 55