Question

(a) Construct a relative frequency histogram for the ideal number of children. Choose the correct graph below. OA B. OC. 0.67 0.47 0.44 0.24 0.27 3 HIIL 0 2 4 6 8 10 en 02 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10 Comment on the shape of the distribution. Choose the correct answer below. O A. The distribution is skewed left. B. The distribution is skewed right. OC. The distribution is symmetric. OD. The distribution is uniform. i Ideal Number of Children (b) What is the mode ideal number of children? Select the correct cho Frequency CA. The mode ideal number of children is(are) 2. (Use a comma to separate answers as needed.) OB. There is no mode. Ideal Number of Children 0 R 12 26 524 261 (c) Determine the mean number of children. 68 The mean number of children is 2.5 (Round to two decimal places as needed. Determine the standard deviation number of children. 10 The standard deviation number of children is (Round to two decimal places as needed.) 11 Print Done

Answer 1

c)

Σf = 915

Standard deviation = sqrt(((12(0 - 2.5)^2 + 26(1 - 2.5)^2 + 524(2 - 2.5)^2 + 261(3 - 2.5)^2 + 68(4 - 2.5)^2 + 10(5 - 2.5)^2 + 5(6 - 2.5)^2 + 3(7 - 2.5)^2 + 1(8 - 2.5)^2 + 0(9 - 2.5)^2 + 4(10 - 2.5)^2 + 1(11 - 2.5)^2)/915) = 1.04