Statistics Descriptive

Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3

• median:7  mode:3  range:7

• median:6  mode:3  range:7

• median:7  mode:3  range:8

The table shows the frequency of the number of visits to the doctor per year for a group of children. What is the mean?

• 2

• 2.2

• 3

• 7.5

At Dominique's Donuts the number of donut holes in a bag can vary. Help Dominique find the mode.
12,10,10,10,13,12,11,13,10

• 13

• 12

• 11

• 10

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?

• 193

• 127

• 60

• 66

In 2015, the mean height of U.S. males aged 20 years and older was 69.1 inches with a standard deviation of 2.25 inches. Dr. taller takes a random sample of college males and finds a mean of 71.3 inches and a standard deviation of 2.5 inches. Match the symbol with what it represents.

• 71.3 inches

• x-bar

• 2.25 inches

• 2.5 inches

• 69.1 inches

• s

Descriptive Statistics helps us to...

• Organize data and represent data

• Make decisions based on data

• Make objective decisions

Find the median of these numbers:
4,2,7,4,3

• 2

• 5

• 7

• 4

Find the mean of these numbers:
2, 57, 38, 42, 6

• 29

• 38

• 50

• 145

Find the range.
7, 1, 1, 7, 1, 4, 1

• 6

• 5

• 7

• 3

The following table shows the annual salaries earned by employees of a small company. What is the mean?

• 75,650

• 54,950

• 42,750

• 51,000