In a sample of 10 cabinets, the average height was found to be 37.3in. with a standard deviation of 3.

Give a point estimate for the population variance of the height of the cabinets. Round your answer to two decimal places, if necessary.

Step-by-step explanation:

For this case we have a sample of n =10 and we have the following statistics:

And we want to estimate the population variance. We need to remember that the population variance is given by this formula:

And the sample variance is given by:

And we can find a formula for the population variance in terms of the sample deviation like this:

And replacing we got:

the answer is b

4th option is correct xy=-10

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