A random variable X has the following pr...

A random variable X has the following probability distribution:

then Var(X)=____

Text Solution

Verified by Experts

The correct Answer is:

`0.60`

Doubtnut Promotions Banner Desktop Dark

Doubtnut Promotions Banner Mobile Dark

|

Topper's Solved these Questions

PROBABILITY
MCGROW HILL PUBLICATION|Exercise Previous Years AIEEE/JEE Main Papers|67 Videos
PROBABILITY
MCGROW HILL PUBLICATION|Exercise Previous Years B-Architecture Entrance Examination Papers|21 Videos
PROBABILITY
MCGROW HILL PUBLICATION|Exercise Exercises (Level 2 Single Correct Answer)|12 Videos
PERMUTATIONS AND COMBINATIONS
MCGROW HILL PUBLICATION|Exercise Questions from Previous Years. B-Architecture Entrance Examination Papers |17 Videos
PROGRESSIONS
MCGROW HILL PUBLICATION|Exercise Questions from Previous Years. B-Architecture Entrance Examination Papers|25 Videos

Similar Questions

Explore conceptually related problems

A random variable X has the following probability distribution find K.

A random variable X has the follwing probability distribution: Find k.

Knowledge Check

A random variable X has the following probability distribution Then the variance of this distribution is

A

`0.6`

B

`0.7`

C

`0.77`

D

`0.66`

A random variable has the following probability distribution The value of p is

A

`1/10`

B

-1

C

`3/10`

D

None of these

Similar Questions

Explore conceptually related problems

A random variable X has the following probability distribution: Then E(X) = …….

A random variable 'X' has the following probability distribution : Find : (i) the value of K (ii) P(X le 1) (iii) P(X ge 0) .

If a random variable X has the following probability distribution values of X Then P(Xge6) is equal to

A random variable X has the follwing probability distribution: Find P( 0 lt X lt 4)

A random variable X has the following probability distribution. Then, the mean of X is

A random variable X has the following probability distribution The mean and standard deviation if X are rspectively

MCGROW HILL PUBLICATION-PROBABILITY-Exercises (Numerical Answer)

Let A and B be two events, the probability that at least one of them o...
02:18
|
The probability that A speaks truth is 5/6, while this probability for...
02:50
|
There are 2m persons sitting in a row. Two of them are selected at ran...
Text Solution
|
Let S={{:[(a,b),(c,d)]:a,b,c,d in {0,1}:}} A matrix A is picked up at ...
03:35
|
Three boxes B1, B2 and B3, have the following composition of white an...
09:22
|
Let A,B and C be three events such that P(A)=0.50, P(B)=0.40, P(A nn...
Text Solution
|
E and F be two independent events such that P(E) lt P(F). The probabil...
04:56
|
Let A and B be two events such that P(A) = 1/3, P(B) = 1/4 and P( A nn...
03:33
|
Three numbers are chosen from the set {1, 2, 3, ..., 40} at random wit...
Text Solution
|
A random variable X has the following probability distribution: ...
02:10
|
If P(B)=3/4, P(AnnBnnbarC)=1/3 and P(barAnnBbarC)=1/3 then P(BnnC)=
02:43
|
A pair of fair dice is rolled together till a sum of 7 or 11 is obtain...
Text Solution
|
In a competitive examination, an examinee either guesses or copies or ...
03:49
|
If (1+4p)/(4),(1-p)/(3) and (1-2p)/(2) are the probabilities of three ...
04:42
|
The digits 1, 2, 3, 4, 5, 6, 7, 8, and 9 are written in random order t...
03:41
|
Two squares are chosen at random on a chessboard. If p denotes the pro...
Text Solution
|
In a multiple choice question, there are five alternative answers of w...
04:04
|
Two persons each make a single throw with a pair of dice. The probabil...
11:50
|
In a sequence of independent trials, the probability of success is 1/4...
Text Solution
|
A fair coin is tossed 100 times. The probability of getting tails 1, 3...
05:25
|