Suppose that the probability of a male birth is 0.5. A couple wishes to have exactly two female children in their family. they will have children until this condition is fulfilled.
question
what is the probability that the family has 4 children??
2007-03-17 17:49:47 · 3 answers · asked by sheryl 1 in Pregnancy & Parenting ➔ Other - Pregnancy & Parenting
You need to use the random number table and create a simulation. You get different answers depending on where you start from on the table. You choose 2 numbers: 0 and 1. Let 0 be a girl and 1 be a boy and go through the table until it fits your condition.
2007-03-17 17:54:24 · answer #1 · answered by Anonymous · 0⤊ 1⤋
the probability of having a female is (0.5) and the probability having a male is also (0.5).
Therefore the probability of having 2 females is (0.5)(0.5) = 0.25 and the probabily of having 2 males (... the other two boys) is also (.5)(.5) = 0.25.
Therefore, the probability of having 4 children..(exactly 2 females... meaning other two must be males) is (0.25)(0.25) = 0.0625 or 1/16.
2007-03-17 17:58:34 · answer #2 · answered by Anonymous · 1⤊ 1⤋
the possibility of having a green one is 5/thirteen and the possibility getting a black one is 8/thirteen so by making use of multiplying the two you get a 40/169 possibility. My answer for this reason is C. i do no longer understand if this is suitable although....
2016-12-18 16:34:39 · answer #3 · answered by ? 4 · 0⤊ 0⤋