E.J. calls people at random to conduct a survey. So far, 40 calls have beenanswered and 120 calls have not been answered. What is the approximateprobability that someone answers the next call he makes?

Question

28-10-2022
Mathematics

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E.J. calls people at random to conduct a survey. So far, 40 calls have beenanswered and 120 calls have not been answered. What is the approximateprobability that someone answers the next call he makes?

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MessiasR177822 MessiasR177822 · Answer 1 · 2022-10-28T04:44:16+02:00

Answer:

C. 0.25

Explanation:

The number of calls answered = 40

The number of calls not answered = 120

[tex]\begin{gathered} \text{Total number of calls so far=120+40} \\ =160 \end{gathered}[/tex]

The approximate probability that someone answers the next call he makes will be:

[tex]\begin{gathered} =\frac{\text{Number of calls answered}}{\text{Total number of calls}} \\ =\frac{40}{160} \\ =\frac{1}{4} \\ =0.25 \end{gathered}[/tex]

The correct choice is C.