Normal Distributions — Quiz

Question 1

What percent of male duck-billed platypuses have a weight of between 2 point 7 1 and 4 point 7 9 pounds?

Revolt · Accepted Answer

95 percent

Question 2

What percentage of young adults send more than 158 text messages per day?

Revolt · Accepted Answer

16 percent

Question 3

What percentage of songs have lengths that are within 31 seconds of the mean?

Revolt · Accepted Answer

68 percent

Question 4

What percentage of adults eat between 9 point 2 and 11 point 6 ounces of chicken in one sitting?

Revolt · Accepted Answer

15 point 8 5 percent

Question 5

What percentage of young adults send between 68 and 158 text messages per day?

Revolt · Accepted Answer

81 point 5 percent

Question 6

According to the graph, 99 point 8 5 percent of young adults send fewer than what number of text messages?

Revolt · Accepted Answer

218

Question 7

What percentage of videos have lengths that are between 114 and 414 seconds?

Revolt · Accepted Answer

95 percent

Question 8

Which statement describes the distribution?

Revolt · Accepted Answer

The distribution is approximately Normal, with a mean of 8 ounces and a standard deviation of 1 point 2 ounces.

Question 9

What percentage of young adults send between 128 and 158 text messages per day?

Revolt · Accepted Answer

34 percent

Question 10

Which statement describes the distribution?

Revolt · Accepted Answer

The distribution is approximately Normal, with a mean of 14 hours and a standard deviation of 4 hours.

Normal Distributions — Quiz Answers