The Results of a Survey of 800 Married Couples and the Number

Short Answer

The results of a survey of 800 married couples and the number of children they had is shown below.
$\begin{array}{ll}\text { Number of Children }&\text { Probability }\\0 & 0.050 \\1 & 0.125 \\2 & 0.600 \\3 & 0.150 \\4 & 0.050 \\5 & 0025\end{array}$ If a couple is selected at random, what is the probability that the couple will have
a. Less than 4 children?
b. More than 2 children?
c. Either 2 or 3 children?