Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B2

Chapter

Probability Distributions

Question:

A telephone exchange receives on an average 5 calls per minute. The probability of receiving 3 or less calls per minute is:

Options:

$15 e^{-5}$

$\frac{118}{3} e^{-5}$

$\frac{15}{4} e^{-5}$

$\frac{13}{3} e^{-4}$

Correct Answer:

$\frac{118}{3} e^{-5}$

Explanation:

The correct answer is Option (2) - $\frac{118}{3} e^{-5}$