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What is the probability of having 3 baby girls in a row?
Assuming that the probability of having a baby girl is 1/2 and that of having a baby boy is 1/2, the probability of having 3 baby girls in a row is (1/2)(1/2)(1/2)=1/8.
What are the chances of picking a boy out of a class with 12 girls and 9 boys?
If the person is picked at random, the the probability is 3/7.
If a couple wants to have two children what is the probability that the first will be a girl and the second will be a boy?
Assuming the chances of having a boy and having a girl are equal (50/50), there are 4 possible outcomes from having 2 children. BOY-BOY, or GIRL-GIRL, or BOY-GIRL, or GIRL-BOY. Since each outcome is of equal probability it means there's a 25% chance the first will be a girl and the second will be a boy.
What is the probability of having a baby boy?
The sex of a child is determined by male sperm. There are only two sexes, so there is an equal (50-50) chance of having a boy or girl.
If each pregnancy is 5050 chance of having a M or F what is the probability of having one F in two pregnancies or one F in three pregnancies Is it still 5050 on the second pregnancy?
Acutally the chances of having a boy are 51% and a girl 49%. The odds stay pretty close to 50% for each child and only vary slightly. If you have had 2 or 3 boys, you are only about 2% to 6% more likely to have another boy. If you have had girls, you are slightly more likely to have a boy next.
