For the following probability distributi...

For the following probability distribution: `X :\ 1\ 2\ \ 3\ 4` `P(X):1/10\ 1/5\ 3/10\ 2/5` The value of `E(X^2)` is `3` b. `5` c. `7` d. 10

Text Solution

AI Generated Solution

Topper's Solved these Questions

MAXIMA AND MINIMA
RD SHARMA ENGLISH|Exercise All Questions|309 Videos
MEAN VALUE THEOREMS
RD SHARMA ENGLISH|Exercise All Questions|134 Videos

Similar Questions

Explore conceptually related problems

For the following probability distribution: X :\ \ -4\ \ -3\ -2\ \ -1\ \ 0 P(X):\ \ 0. 1\ 0. 2\ \ 0. 3\ \ 0. 2\ \ 0. 2 The value of E(X) is a . 0 b. -1 c. -2 d. -1. 8

A random variable has the following probability distribution: X=x_i :\ \ 0 \ \ 1 \ \ 2 \ \ 3 \ \ 4 \ \ 5 \ \ 6 \ \ 7 P(X=x_i):0 \ \ 2p \ \ 2 p\ \ 3p\ \ p^2\ \ 2p^2 \ \ 7p^2 \ \ 2p The value of p is a. 1/10 b. -1 c. -1/10 d. 1/5

Let probability distribution is [[x_i,:,1, 2, 3, 4, 5], [p_i,:,k^2, 2k, k, 2k, 5k^2]] then value of p(x gt 2) is

Prove that the following distributions of probability of random variable X are the probability distributions? X :\ 0\ \ 1\ 2\ 3\ \ 4 P(X): 0.1\ \ 0. 5\ \ 0. 2\ \ 0. 1\ \ 0. 1

A random variable X has the following distribution {:(x:,1,2,3,4),(P(X=x):,k^(2),3k^(2),5k^(2),7k^(2)):} The value of k is

If the mean of the following distribution is 6, find the value of p. x: 2 4 6 10 p+5 f: 3 2 3 1 2

If the mean of the following distribution is 6, find the value of p {:(x:, 2, 4, 6, 10, p+5), (f:, 3, 2, 3, 1, 2):}

If the mean of the following distribution is 2.6, then the value of y is Variable (x) : 1 2 3 4 5 Frequency (y) : 4 5 y 1 2 (a) 3 (b) 8 (c) 13 (d) 24

Solve each of the following equations and also verify your solution: (i) x/2-4/5+x/5+(3x)/(10)=1/5 (2) 7/x+35=1/(10)

Which of the following are algebric equations? a. 2xx5-3=7 b. 2x+6=12 c. (y)/(2)+1=5 d. (2)/(5)-(1)/(10)=(3)/(10)

RD SHARMA ENGLISH-MEAN AND VARIANCE OF A RANDOM VARIABLE -All Questions

A die is tossed twice. A success is getting an odd number on a rand...
Text Solution
|
Three cards are drawn at random (without replacement) from a well shuf...
Text Solution
|
An urn contains 5 red 2 black balls. Two balls are randomly drawn, ...
Text Solution
|
Two numbers are selected are random (without replacement) from posit...
Text Solution
|
Write the values of a for which the following distribution of probabil...
Text Solution
|
Find the mean of the following probability distribution: X=xi :\ \ ...
Text Solution
|
In a single throw of a dice; if X denotes the number on its upper face...
Text Solution
|
If the probability distribution of a random variable X is given by X=x...
Text Solution
|
Find the mean of the following probability distribution: X=xi :\ \ 1 \...
Text Solution
|
If the probability distribution of a random variable X is as given bel...
Text Solution
|
A random variable X has the following probability distribution: X=xi :...
Text Solution
|
A random variable X has the following probability distribution: Values...
Text Solution
|
A random variable has the following probability ...
Text Solution
|
A random variate X takes the values 0, 1, 2, 3 and its mean is 1.3. If...
Text Solution
|
A random variable has the following probability distribution: X=xi :\...
Text Solution
|
If X is a random variable with probability distribution as given below...
Text Solution
|
The probability distribution of a discrete random variable X is given ...
Text Solution
|
For the following probability distribution: X :\ \ -4\ \ -3\ -2\ \ -1...
Text Solution
|
For the following probability distribution: X :\ 1\ 2\ \ 3\ 4 P(X):1/1...
Text Solution
|
Let X be the discrete random variable. Then the variance of X is (a). ...
Text Solution
|