Question

what type of distribution is described by the following information?

Mean= 8.5 Median=9.0 Mode=10

A. (Left) negatively skewed

B. Symmetrical (Normal)

C. Bimodal

D. (Right) positively skewed

The mean IQ score of adults is 100, with a standard deviation of 15. Use the empirical rule to find the percentage of adults with scores between 70 and 130. ( Assume the data set has a bell shaped distribution.).

A. 99.7%

B. 100%

c. 95%

D. 68%

The distances (in miles) driven in the past week by each of a company's sale representatives are listed below . 78 126 238 284 310 356 Find the median distance driven.

A. 284mi

B.198.50mi

c. 261mi

D. 238mi

Answer 1