Assume that dferent groups that the of couples use a partioular method of gender

Question

Assume that dferent groups that the of couples use a partioular method of gender selection and each couple gives birth to one baby This method is designed to incresse the kelhood hat method has no effect, so the probability of a girt is 0.5. Assume that the groups consist of couples. Complote parts (a) through (c) below a. Find the mean and the standard deviation for the numbers of girls in groups of S0 births The value of the mean 25 Type an integer or a decimal. Do not round) The value of the standard deviation is 3.5 Round to one decimal place as needed b. Use the range nule of thumb to find the values separalting results thait are significanitly low or significantly high Round to one decimal place as needed

Explanation / Answer

Solution:-
c) Significantly low = mean - 2 sd = 25 - 2(3.5) = 18.0
  
Significantly high = mean +2 sd = 25 + 2(3.5) = 32.0

Formula : range rule = mean +/- 2 sd

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