1 age 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 A B C number D F G H The distribution of ages of students in a class is given in the webwork problem. (a) Compute the mean, median, mode, variance & standard deviation. (b) Draw a bar graph using graph paper and describe the shape of the distribution. (b) Find mean & the standard error for random samples of size n=4. (c) What is the largest n so that the standard error is > .5? J x 20 21 22 23 24 F(x) 7 1862 Let x be the ages of students in a class. Given the frequency distribution F(x) above, determine the following probabilities: (a) P(x = 22)= | (b) P(x < 24) = (c) P(x23 or x < 21) =