A couple has 4 children ages 9,6,4,and 1.What is the probability that they are all girls.
To calculate the probability of all four children being girls, we need to determine the probability of having a girl for each child and then multiply those probabilities together.
Assuming that the probability of having a girl is 0.5 (equally likely to have a boy or girl), the probability of having all four girls is (0.5)^4 = 0.0625 or 6.25%.
To calculate this probability, we raise the probability of having a girl (0.5) to the power of the number of children (4), and multiply the result by 100 to get the percentage.
So, the probability of the couple having all girls is 6.25%.
Probability of having a girl = .5. Age does not make a difference.
Probability of all/both events occurring is found by multiplying the probabilities of the individual events = .5^4