A box contains 10 pens of which 3 are defective. A sample of 2 pe… | JEE Main 2025 Mathematics PYQ

MCQMediumJEE Main 2025 · 4 April, Shift 1Probability Distributions

A box contains $10$ pens of which $3$ are defective. A sample of $2$ pens is drawn at random and let $X$ denote the number of defective pens. Then the variance of $X$ is

A
$\frac{11}{15}$
B
$\frac{28}{75}$
C
$\frac{2}{15}$
D
$\frac{3}{5}$

Answer & step-by-step solution

Practice more Probability Distributions questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.

Start free trial More on Probability Distributions

Answer & step-by-step solution

Practice more Probability Distributions questions

Related questions