Recent developments appear to make it possible for couples to dramatically incre
ID: 3127578 • Letter: R
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, 6 couples try to have baby girls. If this gender-selection method has no effect, what is the probability that the 6 babies will be all girls? The probability is .(Type an integer or a simplified fraction.) If there are actually 6 girls among 6 children, does this gender selection method appear to be effective? Why? Not necessarily, because the event of getting 6 females by chance is not unusual. No, the gender-selection procedure cannot have any effect on the genders of the 6 children. Not necessarily, although the event is unusual it is not so improbable that the only reasonable explanation is the gender-selection procedure.Explanation / Answer
a. n = 6, p = probability of having baby girl = 0.5
The Binomial formula,
p ( X = x ) = nCx * px * ( 1 - p )n-x
p ( x = 6 ) = 6C6 * 0.56 * ( 1 - 0.5 )6-6
= 0.0156
b. The correct option :
A. Not necessarily, because the event of getting 6 famale by chance is not unusual.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.