Skip to content
We use only essential cookies to keep you signed in and remember your preferences. See our Cookie Policy.
TestStop
MocksPracticeResourcesIndiaBlogPricing
Sign in
Questions › JNU › JNU SIS 2012 › Q17
4 marks, −1Statistics › Random variables and standard distributions › The Poisson distributionEasyabout 1 min

JNU SIS 2012 Question 17: Random variables and standard distributions

The distribution of the number of printing mistakes per page of a book is Poisson with mean 3. Given that e−3=0.049787e^{-3} = 0.049787e−3=0.049787, the probability that there is some mistake in a page is

Tap an option to check your answer.

Answer and worked solution

Checking your account…

Plain-text version

The distribution of the number of printing mistakes per page of a book is Poisson with mean 3. Given that e⁻³ = 0.049787, the probability that there is some mistake in a page is (A) 0.049787 (B) 0.950212 (C) 0.905020 (D) None of the above

Also written as: The distribution of the number of printing mistakes per page of a book is Poisson with mean 3. Given that e^(-3) = 0.049787, the probability that there is some mistake in a page is

Random variables and standard distributions has come up 173 times in 7 exams since 2005.

What this question tests

This question is on The Poisson distribution, part of Random variables and standard distributions in Statistics.

Counts of rare events, where mean equals variance.

TestStop has 9 past-paper questions on this subtopic.

Practise Random variables and standard distributionsMore on The Poisson distribution

Similar questions from other papers

  • CUET-PG 2026 · Q35Given below are two statements: Assertion A: A random variable is a numerical description of the outcome of an experiment. Reason R: The particular numerical value of a…
  • GATE 2026 · Q41Suppose, a random variable X follows a Poisson distribution with parameter λ=25. The coefficient of variation of the distribution is (rounded off to two decimal places)
  • IIT JAM 2026 · Q42It is given that Prob(-1≤ z≤ 1)=0.683, Prob(-2≤ z≤ 2)=0.954, and Prob(-3≤ z≤ 3)=0.997, when z follows a standard normal distribution. If X follows a normal distribution…
  • CUET-PG 2025 · Q20Suppose that the random variable X takes on the values: -1, 0, and 2 with probability 1/8, 1/2 and 3/8. Find the expected value of X.
  • GATE 2025 · Q41If X is a continuous random variable whose probability density function is given by f_X(x) = { 1/x² for 1 < x < ∞; 0 elsewhere } Then the median of X is (in integer)

Question from the JNU SIS 2012 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.