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

The sample variance would be given by;

And replacing we got:

The standard deviation would be:

Step-by-step explanation:

For this case we have the following data:

42 40 39 31 22 18 15 12 11.7 10.5

If we sort the values on increasing order we got:

10.5 11.7 12.0 15.0 18.0 22.0 31.0 39.0 40.0 42.0

The range is defined as:

The sample variance would be given by;

And replacing we got:

The standard deviation would be:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

answer: (-6,3)

step-by-step explanation: