Hello no need for an explanation i just badly need this pls help me out thankyoouu

S7 Complete the statement by filling in the blank. Write your answer on a separate sheet of paper. A is a frequency distribution using the means computed from all possible random samples of a specic size taken from a population. To get the possible samples use the formula M, where N is the and n is the _ size to be taken. The total probability of the sample mean must be equal to _