Solve the Problem What Is the Probability That a Student Has at Most

Multiple Choice

Solve the problem.
-In a survey about the number of siblings of college students, the following probability table was constructed: $$\begin{array} { c | c } \text { Number of Siblings } & \text { Probability } \\\hline 0 & 0.27 \\\hline 1 & 0.31 \\\hline 2 & 0.20 \\\hline 3 & 0.13 \\\hline 4 \text { or more } & 0.09\end{array}$$ What is the probability that a student has at most 2 siblings?

A) 0.58
B) 0.42
C) 0.78
D) 0.22