4. Compute, in terms of the input integer n, how many arithmetic operations (additions, subtractions, multiplications, divisions) are performed by each of the following algorithms. Use the theorem on polynomial orders to find an order for the algorithm segment. (a) Input: n [positive integer] Algorithm body: x := 1 for i = 3 to n x := x · i + i 5 next i Output: x

Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.