1. The scores of Grade 11 students in an achievement test in Mathematics are normally distributed with a mean of 65 and a standard deviation of 5. Suppose that a random sample of 16 scores from this test is selected. Owens.en o Iigio a. Find the mean of the sampling distribution of sample means and the standard error of the mean. b. Find the probability that the random sample of 16 scores will have a mean below 64.

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A: 1,2,3....,23,24,25 are called element of set S.  Hence, set S has 25 element which mean n(S) = 25…