TH 210-WU1, W02, and W03-Statistical Methods jose rendon&I; 6/18/18 3:15 PM omew

Question

TH 210-WU1, W02, and W03-Statistical Methods jose rendon&I; 6/18/18 3:15 PM omework: Homework for Section 5.2 core: 0 of 10 pts 2.29 Save 9 of 10 (6 complete) Score: 52 596, 52 5 of 100pts Question Help Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. This method is designed to increase the likelihood that each baby will be a girl, but assume that the method has no effect, so the probability of a girl is 0.5. Assume that the groups consist of 27 couples Complete parts (a) through (c) below a. Find the mean and the standard deviation for the numbers of girs in groups of 27 births The value of the mean is ? Type an integer or a decimal. Do not round.) Enter your answer in the answer box and then click Check Answer parts

Explanation / Answer

Here, n = 27 and p = 0.5 and X : number of girls in groups of 27 births.

Mean = E(X) = np = 27 * 0.5 = 13.5.

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