Statistics and Percentages

The scores of a student in five tests: 10; 8; 13; x and 9.

Knowing that the average (mean) of these five scores is 12, then x =

• 12

• 14

• 18

• 20

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24
• 36
• 39
• 52

The masses of six children are 34.5 kilograms, 42.6 kilograms, 39.8 kilograms, 40.1 kilograms, 53.4 kilograms, and 33.8 kilograms. Find the mean mass.

• 40.7

• 34.9

• 48.8

• 40

The distribution of heights of adult American men is approximately Normal with mean 69 inches and standard deviation 2.5 inches. What percent of men are between 64 and 66.5 inches tall?

• 50%

• 2%

• 14%

• 34%

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

• 193
• 127
• 60
• 66

Which is a possible value for the median average temperature?

• 84

• 74

• 94

• 99

How many people watched more than 25 hours of TV last week?

• 0
• 10
• 38
• 42

Write 19/25 as a percent.

• 19%
• 25%
• 76%
• 50%

In the last election, 115,000 people in the city voted. This election, the number of voters increased to 161,000. What is the percent increase in number of voters?

• 40%

• 0.40%

• 29%

• 0.29%

Tags

CCSS.6.RP.A.3C

34% of what number is 51?

• 69
• 71
• 150
• 196

Tags

CCSS.6.RP.A.3C