The arithmetic mean of the first five natural numbers is: MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Statistics Questions
Question #1
Report Error
In a binomial distribution with n=4 and p=1/2, the probability of exactly 2 successes is:
Correct Answer: Option D
Explanation:
C(4,2)×(1/2)^2×(1/2)^2 = 6×1/4×1/4=6/16=3/8.
C(4,2)×(1/2)^2×(1/2)^2 = 6×1/4×1/4=6/16=3/8.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
Report Error
In a frequency distribution with classes 0-9, 10-19, 20-29,... the class boundaries for 20-29 are:
Correct Answer: Option D
Explanation:
Given inclusive intervals with gap of 1, subtract 0.5 from lower and add 0.5 to upper.
Given inclusive intervals with gap of 1, subtract 0.5 from lower and add 0.5 to upper.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
Report Error
Assertion (A): NRR is a more accurate measure of population replacement than GRR. Reason (R): NRR incorporates female mortality, while GRR does not.
Correct Answer: Option C
Explanation:
NRR adjusts for the probability that female births survive to reproductive ages, providing a realistic assessment of generational replacement, whereas GRR assumes all female births survive, overestimating replacement potential.
NRR adjusts for the probability that female births survive to reproductive ages, providing a realistic assessment of generational replacement, whereas GRR assumes all female births survive, overestimating replacement potential.
This question belongs to:
Accountancy and Statistics
Statistics
No comments yet. Be the first to start the discussion!