Statistics
WB JEE / Mathematics / Algebra / 3 questions
MathematicsAlgebra3 PYQs
Practice 3 WB JEE Mathematics questions from Statistics. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
3
PYQs on Page
Mathematics / Algebra
2016-2021
Year Range
Based on indexed question metadata
2
Last 5 Years
2017-2021
3
Last 10 Years
2012-2021
Recent Year Trend
2016
2017
2021Latest year
20161 max PYQs/year2021
Question Types
3PYQs
MCQ100%
Difficulty Mix
#1 Unknown3
2 in last 5 years3 in last 10 years
Statistics Questions
Showing 3 of 3 questions on this page.
1Statistics
The mean and variance of a binomial distribution are 4 and 2 respectively. Then the probability of exactly two successes is
MCQ+1 / -0.252021
2Statistics
Mean of n observations x1, x2, ...., xn is \(\overline x\). If an observation xq is replaced by xq' then the new mean is
MCQ+1 / -0.252017
3Statistics
Standard deviation of n observations a1, a2, a3, ....., an is \(\sigma\). Then, the standard deviation of the observations \(\lambda\)a1, \(\lambda\)a2, ....., \(\lambda\)an is
MCQ+1 / -0.252016
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