Back to STATISTICS
JEE MATHEMATICS MCQ: STATISTICS
1
Easy
1 of 1
Understanding
+4 | -1
Let and be the A. M. of the regression coefficient of on and on , then
View answer and explanation
Correct option: C
Option C () is correct because the arithmetic mean (m) of the regression coefficients is always greater than or equal to the geometric mean (r), which is the correlation coefficient.
More Questions from STATISTICS
Practice All Chapter MCQs →
If the mean of a set of observations is then the mean of the observations is
The sum of 10 items is 12 and sum of their squares is 18 , then standard deviation will be
In a family, there are 8 men, 7 women and 5 children whose mean ages separately are respectively 24,20 and 6 years. The mean age of the family is
The mean and variance of seven observations are 8 and 16, respectively. If 5 of the observations are 2, 4, 10, 12, 14, then the product of the remaining two observations is
are 5 observations. Mean of these observations is 5 and variance is 8. Sum of the cubes of the two missing number equals:
If s.d. of a set of observations is 8 and if each observation is divided by the s.d. of the new set of observations will be
