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? 42 40 39 31 22 18 15 12 11.7 10.5

a. The Range of the sample data is $ million.
b. The variance of the sample data is
c. The standard deviation of the sample data is $ million.
d. Is the the standard deviation of the sample a good estimate of the variation of the salaries of the TV personalities in general ?

1. yes, because the standard deviation is an unbiased estimator
2. no, because the sample is not representative of the whole population.
3. no, because there is an outlier in the sample data.
4. yes, because the sample is random.

69

Step-by-step explanation:

420

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

step-by-step explanation: