Finding the Range, Median and Mode from Line Plot or Stem and Leaf

What is the mean?

• # happening the most
• the number in the middle
• biggest-smallest
• the average

A data set can have more than one mode

• True
• False

Find the mean of this data set:

2, 57, 38, 42, 6

• 29

• 38

• 50

• 145

Find the median of this data set:

4, 2, 7, 4, 3

• 2

• 5

• 7

• 4

Find the mode of this data set:

67, 74, 95, 98, 98, 99, 102

• 90.4

• 35

• 92

• 98

How many scores are listed in this Stem and Leaf Plot?

• 3
• 6
• 9
• 18

A florist records the amount of money he spent on gasoline each week to deliver orders. The list shows the data for 16 weeks.

32, 38, 40, 44, 46, 47, 49, 53, 55, 58, 62, 65, 68, 70, 72, 81

He put the data in a stem-and-leaf plot. What number did he leave out of the stem-and-leaf plot?

• 32

• 47

• 65

• 84

What is the mode of the scores?

• 24
• 14
• 34
• 30

What is the median of the scores?

• 21

• 16

• 17

• 19

The temperature in Michigan City on this date in the last ten years were: 68, 68, 69, 70, 72, 70, 68, 75, 55, 67. What is the mean temperature on this date over the last ten years? (Round to nearest whole number.)

• 60

• 61

• 68

• 69