Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The variance of the first 20 positive integral multiples of 4 is equal to
Text Solution
Verified by ExpertsThe correct answer is:
A
532
The numbers are 4, 8,12........80
Mean, 
So, the variance is 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
If the variance of the following data :
6, 8, 10, 12, 14, 16, 18, 20, 22, 24 is K, then the value o…
Let one observation equal to the mean is added to n observations. If the variance changes from 78 t…
If and , then the standard deviation of observations 3x 1 + 2, 3x 2 + 2, 3x 3 + 2, 3x 4 + 2 and 3…
If the variance of the first n natural numbers is 10 and the variance of the first m even natural n…
A number equal to 2 times the mean and with a frequency equal to k is inserted in a data having n o…
The ratio of the variance of first n positive integral multiples of 4 to the variance of first n po…