Find the variance for the given data. Round your answer to one more decimal place than the original data. Jeanne is currently taking college zoology. The instructor often gives quizzes. On the past five quizzes, Jeanne got the following scores: 12 5 3 5 13

Group of answer choices

16.6

20.7

20.8

32.8

Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data. The top nine scores on the organic chemistry midterm are as follows. 87, 36, 82, 74, 32, 88, 60, 89, 23

Group of answer choices

25.1

7.9

26.6

28.4

A set of data items is normally distributed with a mean of 60. Convert the data item to a z-score, if the standard deviation is as given. data item: 72; standard deviation: 3

Group of answer choices

5

3

4

12

A set of data items is normally distributed with a mean of 500. Find the data item in this distribution that corresponds to the given z-score. z = 2, if the standard deviation is 50.

Group of answer choices

400

550

502

600

Provide an appropriate response. Find the equation of the regression line for the given data.

Group of answer choices

= 2.097x - 0.552

= 2.097x + 0.552

= -0.552x + 2.097

= 0.522x - 2.097

Solve the problem. The function A = A_oe^-0.00866xmodels the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 400 pounds of the material are initially put into the vault, how many pounds will be left after 50 years?

Group of answer choices

320 pounds

259 pounds

125 pounds

132 pounds

Find the test statistic or P-Value. Use a t - test. You wish to test the claim that 22 at a level of significance of = 0.05 and are given sample statisticsandCompute the value of the standardized test statistic. Round your answer to two decimal places.

Group of answer choices

-1.83

-3.12

-2.86

-1.97

Find the test statistic or P-Value. Use a t - test. You wish to test the claim that 17 at a level of significance of = 0.05 and are given sample statisticsandCompute the value of the P-Value. Round your answer to two decimal places.

Group of answer choices

0.0058

0.5361

0.0568

0.0112