A set of four observations has mean 1 and variance 13. Anoth... — JEE PYQs | Mockzy

MediumJEE PYQs

+4 / -1

A set of four observations has mean 1 and variance 13. Another set of six observations has mean 2 and variance 1. Then, the variance of all these 10 observations is equal to:

5.96

6.14

6.04

6.24

A candidate has to go to the examination centre to appear in an examination. The

If then \alpha is equal to:

More from Mathematics

Medium

Let f be a polynomial function such that , x > 0 , f(6) = 37then

Medium

Consider the circle C : x2 + y2 – 6x – 8y – 11 = 0. Let a variable chord AB of the circle C subtend

Medium

Let a line L1 pass through the origin and be perpendicular to the linesis the point on L3 at a dista

Medium

If then 9α is equal to_____.

Medium

The sum of squares of all real solution of the equationis equal to _______.

Medium

Let represent an ellipse with major axis along the y-axis, where f is a strictly decreasing positive

Practice JEE PYQs Exams

Full-length mock tests with detailed analytics, rank, and percentile.

Browse Exams