Unit 2 Probability & Stats

What is the mean of the data set:
8.9, 9.4, 8.6, 9.1

• 8.5
• 8.9
• 9
• 9.1

What is the mode of the data set:
Black  Blue  Red
Pink  Black  Black
Gray  Green  Blue
Blue  Blue  Red
Yellow  Blue  Red

• Blue and Black
• Blue
• Red
• Black

Find the median of the data set:
18, 19, 17, 14, 20, 20, 15, 21

• 17
• 18.5
• 20
• 14

Find the mean of the data set:
34, 57, 58, 56, 21

• 45.2
• 56
• none
• 48

Find the median of this set of numbers:
10, 10, 7, 12, 11

• 11
• 7
• 10
• 12

A data set can have more than one mode

• True
• False

Find the mode:
5, 0, 9, 9, 3, 0, 5, 5, 4

• 9
• 5
• 3
• 7

Find the IQR.

10, 14, 20, 15, 12, 13, 24

• 8

• 12

• 14

• 20

What is the interquartile range of this data?

162, 184, 205, 248, 192, 236, 268, 282,

• 120

• 95

• 70

• 72

Are there any outliers in this data set?

23, 34, 27, 13, 30, 26, 28, 31, 44

• 13

• 44

• 13 and 44

• There are no outliers.