Real World Data and Statistics

The number of movies streamed in a month online by a number of people is shown in this graph.

How many people streamed three movies?

• 4

• 8

• 14

• 3

How many people streamed fewer than two movies?

• 13

• 27

• 40

• 30

This table shows the frequency of scores in a test.

How many scores were in the 40 to less than 60 range?

• 7

• 11

• 18

• 6

How many scores were there in total?

• 30

• 100

• 23

• 32

The mean (average) for the set of data 38, 41, 41, 47, 58 is:

• 225

• 45

• 112.5

• 40

The mode (most frequent) of the set of data 38, 41, 41, 47, 58 is:

• 41

• 58

• 38

• 47

The median (middle value of an ordered set) of the data set 38, 41, 41, 47, 58 is:

• 38

• 45

• 41

• 40

What is the minimum calculator weight and maximum weight?

• Min = 9g and

  Max = 14 g

• Min = 98g and Max = 145g

• Min = 9.8 g and

  Max = 14.5g

• Min = 140g and

  Max = 145g

This stem-and-leaf plot shows the weight, in grams, of some small calculators.

What is the mode (i.e. most frequent)?

• 145g

• 14.5g

• 111g

• 111g and 139g

This stem-and-leaf plot shows the weight, in grams, of some small calculators.

Find the range (i.e. maximum value – minimum value).

• 119

• 5

• 4.7

• 47