Question 1
The sum of deviations of a set of observations from their mean is:
Correct Answer:
always zero
Question 2
Which of the following is a measure of relative dispersion?
Correct Answer:
Coefficient of Variation
Question 3
If P(A) = 0.4, P(B) = 0.5, and A and B are mutually exclusive, what is P(A U B)?
Correct Answer:
0.9
Question 4
In a Binomial distribution, the mean and variance are related as:
Correct Answer:
Mean > Variance
Question 5
The standard deviation of a Poisson distribution with parameter lambda is:
Correct Answer:
sqrt(lambda)
Question 1
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About this Exam

Prepare with the WBCHSE HS Statistics Practice Questions - West Bengal Higher Secondary Statistics Examination Exam practice quiz. This question bank includes 90 questions covering mean, distribution, standard, binomial, and variance. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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WBCHSE HS Statistics Practice Questions - West Bengal Higher Secondary Statistics Examination Exam

This practice set contains 90 questions from the matching question bank and focuses on mean, distribution, standard, binomial, and variance. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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