The mean and variance of a binomial variable are 8 and 7 respecti… - Vidyadip

Question

The mean and variance of a binomial variable are $8$ and $7$ respectively. Find the probability of success.

✓

Answer

$\frac{1}{8}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Each" from PART 2 : RANDOM VARIABLE ANE DISCRETE PROBABILITY DISTRIBUTION→PART 2 : RANDOM VARIABLE ANE DISCRETE PROBABILITY DISTRIBUTION — all question types→Statistics STD 12 Commerce question papers→Gujarat Board STD 12 Commerce question papers→Gujarat Board question paper generator→

Similar questions

Mean of a normal distribution is $13.25$ and its standard deviation is $10.$ Estimate the value of its third quartile.

Define the cost of living index number.

In a normal distribution $Q_1=25, Q_2=40$. Find the value of $Q_3$.

What is the value of $P(A)$ if event $A=\emptyset$ and $A=U?$

What is the symbol of the distribution of normal variable $X ?$

For a normal probability distribution Mean $=$ Variance. If standard deviation is $15$ then what is the mean of distribution?

If function $f: A \rightarrow R$, then what Is called the derivative of $f$ at a?

Marks obtained by students of a school in Economics subject follow normal distribution with mean $\mu$ and standard deviation $\sigma$. The value of standard score that a randomly selected student obtained $60$ marks is $1 .$ If the variance of variable is $100 ($marks$) ^2$ then find average marks.

What is the value of $P (B)$ if events $A$ and $B$ are mutually exclusive and exhaustive and $P(A) = 2P(B)?$

State the necessary condition for the stationary values of a function.