Statistics review

How many people were polled?

• 33
• 6
• 35
• 4

Which interval has 400 employees?

• 33-43
• 0-10
• 77-87
• 66-76

How many employees have a salary less than $22,000?

• 50
• 350
• 0
• 10

Which of the following statements corresponds to a frequency distribution?

• a table that shows the number of times a data entry appears in a data set.

• a data set that shows the number of data entries that appear in a time.

• a conclusion drawn from a sample.

• the boundaries between two consecutive bars.

Observe the histogram and choose the frequency distribution that corresponds to it.

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• 

The following data set shows the minutes spent on internet by 50 internet users. Find the range.

• 86

• 7

• -79

• 79

• 4

• 8

• 40

• not enough information

• 70

• 50

• 35

• 28

How many children are between 65 cm and 75 cm tall?

• 4

• 2

• 0.2

• not enough information

• 50

• 2

• 10

• 5