A population has a mean u= 88 and a standard deviation o = 18. Find the mean and standard deviation of a sampling distribution of sample means with sample size n= 81. %3D H=(Simplify your answer.)

A population has a mean µ = 81 and a standard deviation o = 36. Find the mean and standard deviation of a sampling distribution of sample means with sample size n= 81. (Simplify your answer.) o; = (Simplify your answer.) O- =

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Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. 3, 5, 9, 15, 18, 21, 25 range       standard deviation       variance

The ages​ (in years) of a random sample of shoppers at a gaming store are shown. Determine the​ range, mean,​ variance, and standard deviation of the sample data set. 12, 20, 23, 13, 18, 17, 22, 17, 15, 16 The range is The mean is ( Simplify your answer. Round to the nearest tenth as​ needed.) The variance is (Simplify your answer. Round to the nearest hundredth as​ needed.) The standard deviation is (Simplify your answer. Round to the nearest tenth as​ needed.) Can you please explain me this math problem having trouble understanding. Thank you.

dont use excel.

Find the range, the standard deviation, and the variance for the given sample. Round non-integer results to the nearest tenth. 6, 9, 10, 14, 16, 41 range       standard deviation       variance

Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. 65, 55, 58, 62, 94, 85, 53, 84, 70 rangel standard deviation variance

Calculate the mean of the data, and then calculate the deviations for each of the 6 scores. Using that information, calculate the variance and standard deviation of the data set, and then calculate a Z-Score for each of the 6 scores in the data set.                                                6, 10, 9, 13, 14, 11