If a couple has 4 children and none are from multiple births or twins. With the probability of sons being 50% how many sons would they expect to have?
To calculate the expected number of sons in a family with 4 children, we need to multiply the probability of having a son (0.5) by the number of children (4).
Expected Number of Sons = Probability of Having a Son × Number of Children
Expected Number of Sons = 0.5 × 4 = 2
Therefore, the couple would expect to have 2 sons.
Note that the probability of having a son (or daughter) is assumed to be independent for each child, meaning that the probability remains the same regardless of the gender of the previous children.