12.2 & 12.3 Statistics

Calculate the range (spread) of the following:

2, 5, 8, 3, 13, 5

• 11

• 13

• 5

• 8

calculate the median for the following set of scores:

45, 69, 69, 87, 88, 92, 99, 100

• 87

• 55

• 87.5

• 99

Calculate the interquartile range of the following data:

17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8

Find the lower quartile of the data showing the amount of time students spent time playing video games this week.
7, 0, 10, 4, 20, 2, 11

• 0

• 2

• 11

• 20

Find the upper quartile of the data showing how much time

students spent playing video games this week.

7, 0, 10, 4, 20, 2, 11

• 7

• 2

• 11

• 0

Find the interquartile range using the following data:

4, 4, 4, 4, 5, 6, 7, 7, 7

• 3

• 1.5

• 2

• 6

What is the median?

• 62
• 58
• 66
• 60

What is the minimum value?

• 64
• 58
• 66
• 61

What is the maximum value?

• 58
• 66
• 64
• 60

What value is the lower quartile (Q1)?

• 66
• 58
• 60
• 64