nearsightedness effects of children in a certain country. the eyesight of randomly selected children are checked for nearsightedness. 1)What is the mean of the sampling distribution of proportions? Type as #.##CheckShow answer2)What is the standard deviation of the sampling distribution of proportions? Type as: #.###CheckShow answer3)What is the probability that n=256 randomly selected children will have a proportion of nearsightedness of at least 9%? Type as #.###
