Question

A random variable X has the following probability distribution for wait times at a call center. The time is in hours. What is the probability to wait over two hours at the call center?X-valueP(X)00.110.5620.1730.140.07Write your answer as a decimal.

Answer 1

STEP - BY STEP EXPLANATION

What to find?

The probability to wait over two hours at the call center.

Given:

The probability to wait over two hours = P(x > 2)

$P(x>2)=P(3)+P(4)$

From the table given;

P(3) = 0.1 and P(4) = 0.07

Substitute the values into the formula.

$\begin{gathered} P(x>2)=0.1+0.07 \\ \\ =0.17 \end{gathered}$

ANSWER

0.17