>
Exams
>
Mathematics
>
Probability
>
a telephone exchange receives on an average 5 call
Question:
A telephone exchange receives on an average 5 calls per minute. The probability of receiving 3 or less calls per minute is :
CUET (UG) - 2023
CUET (UG)
Updated On:
May 21, 2024
\(15e^{-5}\)
\(\frac{118}{3}e^{-5}\)
\(\frac{15}{4}e^{-5}\)
\(\frac{13}{3}e^{-4}\)
Hide Solution
Verified By Collegedunia
The Correct Option is
B
Solution and Explanation
The correct option is (B):
\(\frac{118}{3}e^{-5}\)
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Probability
A fair six-faced dice, with the faces labelled ‘1’, ‘2’, ‘3’, ‘4’, ‘5’, and ‘6’, is rolled thrice. What is the probability of rolling ‘6’ exactly once?
GATE MA - 2025
GATE AG - 2025
General Aptitude
Probability
View Solution
If $ A $ and $ B $ are two events such that $ P(A) = 0.7 $, $ P(B) = 0.4 $ and $ P\left( A \cap \overline{B} \right) = 0.5 $, where $\overline{B}$ denotes the complement of $ B $, then $ P\left( B | \left( A \cup \overline{B} \right) \right) $ is equal to
JEE Main - 2025
Mathematics
Probability
View Solution
If A and B are two events such that \( P(A \cap B) = 0.1 \), and \( P(A|B) \) and \( P(B|A) \) are the roots of the equation \( 12x^2 - 7x + 1 = 0 \), then the value of \( \frac{P(A \cup B)}{P(A \cap B)} \) is:
JEE Main - 2025
Mathematics
Probability
View Solution
Two balls are selected at random one by one without replacement from a bag containing 4 white and 6 black balls. If the probability that the first selected ball is black, given that the second selected ball is also black, is \(\frac{m}{n}\), where gcd(m, n) = 1, then m + n is equal to:
JEE Main - 2025
Mathematics
Probability
View Solution
A board has 16 squares as shown in the figure. Out of these 16 squares, two squares are chosen at random. The probability that they have no side in common is:
\includegraphics[]{10.PNG}
JEE Main - 2025
Mathematics
Probability
View Solution
View More Questions
Questions Asked in CUET exam
Two parallel plate capacitors of capacitances 2
\(\mu F\)
and 3
\(\mu F\)
are joined in series and the combination is connected to a battery of V volts. The values of potential across the two capacitors
\(V_1\)
and
\(V_2\)
and energy stored in the two capacitors
\(U_1\)
and
\(U_2\)
respectively are related as_____
Fill in the blank with the correct answer from the options given below
CUET (UG) - 2024
Electrostatics
View Solution
Two resistances of 100
\(\Omega\)
and 200
\(\Omega\)
are connected in series across a 20 V battery as shown in the figure below. The reading in a 200
\(\Omega\)
voltmeter connected across the 200
\(\Omega\)
esistance is _______.
Fill in the blank with the correct answer from the options given below
CUET (UG) - 2024
Current electricity
View Solution
Select the word opposite in meaning to the underlined word:
At first the workers were agreeable to the proposals of their Manager, but later they were
reconciled
to the new proposals.
CUET (UG) - 2024
Antonyms
View Solution
Find out which of the answer figures completes the figure matrix :
CUET (UG) - 2024
Image Based
View Solution
Evaluate the integral $\int \frac{\pi}{x^n + 1 - x} , dx$:
CUET (UG) - 2024
Integration by Partial Fractions
View Solution
View More Questions