Recent developments appear to make it possible for couples to dramatically incre

Question

Recent developments appear to make it possible for couples to dramatically increase the likelihood that they will conceive a child with the gender of their choice. In a test of a gender-selection method, 13 couples try to have baby girls. a. If this gender-selection method has no effect, what is the probability that the 13 babies will be all girls? The probability is .(Type an integer or a simplified fraction.) b. If there are actual 13 girls among 13 children, does this gender-selection method appear to be effective? Why? A. No, the gender-selection procedure cannot have any effect on the genders of the 13 children B. Not necessarily, because the event of getting 13 females by chance is not unusual C. Yes, the low probability indicates that instead of getting 13 females by chance, a more reasonable explanation is that females appear to be more likely with the gender-selection procedure.

Explanation / Answer

a)probabilty all 13 will be girls =(!/2)13 =1/8192 which is very unusual .

b) option C is correct as we have not done this test for boys

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