Question

Listed below are the top 10 annual salaries​ (in millions of​ dollars) of TV personalities. Find the​ range, variance, and standard deviation for the sample data. Given that these are the top 10​ salaries, do we know anything about the variation of salaries of TV personalities in​ general?

41     39     38     31     20     18     16     15     14.6     14.0

The range of the sample data is ​$ nothing million. ​ (Type an integer or a​ decimal.)

The variance of the sample data is= (Round to two decimal places as​ needed.)

The standard deviation of the sample data is million. ​(Round to two decimal places as​ needed.)

Is the standard deviation of the sample a good estimate of the variation of salaries of TV personalities in​ general?

A. ​No, because there is an outlier in the sample data.

B. Yes, because the sample is random.

C. ​No, because the sample is not representative of the whole population.

D. ​Yes, because the standard deviation is an unbiased estimator.

Answer 1