If the mean and variance of a binomial variable $X$ are $2.4$ and $1.44$ respectively,then the parameters $n$ and $p$ are respectively
- A$6, \frac{2}{5}$
- B$4, \frac{3}{5}$
- C$6, \frac{3}{5}$
- D$8, \frac{1}{3}$
Explore More
Similar Questions
The mean and variance of a binomial distribution are $x$ and $5$ respectively. If $x$ is an integer,then the possible values for $x$ are
$A$ random variable $X \sim B(n, p)$. If the values of the mean and variance of $X$ are $18$ and $12$ respectively,then $n = $
$A$ coin is tossed $7$ times. What is the probability that a person who calls 'heads' every time wins more often?
Medium
View Solution$A$ fair die is thrown $4$ times. If getting a prime number on the die is considered as a success, then the probability of getting no success at all is ...
DifficultMHT CET 2026
View SolutionThe probability of a man hitting a target is $3/4$. He tries $5$ times. What is the probability that he hits the target at least $3$ times?
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo