Back to STATISTICS

JEE MATHEMATICS MCQ: STATISTICS

1 Easy

1 of 1

Analyzing +4 | -1

Out of two lines of regression given by

x+2 y=4

and

2 x-3 y-5=0

, the regression of

x

on

y

is

View answer and explanation

Correct option: C

they are not lines of regression

The correct answer is "they are not lines of regression" because the product of the regression coefficients is negative, which is impossible.

More Questions from STATISTICS

Practice All Chapter MCQs →

If the mean of a set of observations

{x_1},{x_2}, \ldots ,{x_n}

\bar X,

then the mean of the observations

{x_i} + 2\;i;i = 1,\;2, \ldots ,n

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

1,3,5, x, y

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

-2,

the s.d. of the new set of observations will be