Question
A random variable X has the probability distribution given below. Its variance is
The correct answer is:
Related Questions to study
If the probability distribution of a random variable X is
then k =
If the probability distribution of a random variable X is
then k =
If the probability distribution of a random variable X is
then second moment about 0 i.e., 
If the probability distribution of a random variable X is
then second moment about 0 i.e.,
X is a random variable with distribution given below
Then the value of k and variance are
X is a random variable with distribution given below
Then the value of k and variance are
The mean and variance of the random variable X which follows the following distribution are respectively
The mean and variance of the random variable X which follows the following distribution are respectively
If X is a random variable with the following distribution
where p + q = 1 then the variance of X is
If X is a random variable with the following distribution
where p + q = 1 then the variance of X is
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?
Assertion : The only product of light reaction required in dark reaction are NADPH2 and ATP in C4-plants.
Reason: Dark reaction occurs in night only.
Assertion : The only product of light reaction required in dark reaction are NADPH2 and ATP in C4-plants.
Reason: Dark reaction occurs in night only.
A rectangle with sides 2m – 1 and 2n – 1 is divided into squares of unit length by drawing parallel lines as shown then number of rectangles possible with odd side lengths is
A rectangle with sides 2m – 1 and 2n – 1 is divided into squares of unit length by drawing parallel lines as shown then number of rectangles possible with odd side lengths is
Using permutation or otherwise prove that 
is an integer, where n is a positive integer.
Using permutation or otherwise prove that is an integer, where n is a positive integer.
Find two values of k such that the points (2,-3), (3,0),(4,k) are collinear.
Find two values of k such that the points (2,-3), (3,0),(4,k) are collinear.
The sum of the first four terms of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of terms is
Here we used the concept of Arithmetic progression to find the number of terms in the given series. When we study Arithmetic Progression, which is associated with: There are two key formulas we encounter, those were nth term of AP and sum of the first n terms. So therefore the number of terms in this AP is 11.
The sum of the first four terms of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of terms is
Here we used the concept of Arithmetic progression to find the number of terms in the given series. When we study Arithmetic Progression, which is associated with: There are two key formulas we encounter, those were nth term of AP and sum of the first n terms. So therefore the number of terms in this AP is 11.
The sum of all two digit numbers which when divided by 4 leaves 1 as remainder is
Here we used the concept of Arithmetic progression to find the number of terms in the given series. When we study Arithmetic Progression, which is associated with: There are two key formulas we encounter, those were nth term of AP and sum of the first n terms. So therefore the sum is 1210.
The sum of all two digit numbers which when divided by 4 leaves 1 as remainder is
Here we used the concept of Arithmetic progression to find the number of terms in the given series. When we study Arithmetic Progression, which is associated with: There are two key formulas we encounter, those were nth term of AP and sum of the first n terms. So therefore the sum is 1210.
is the potential barrier across a p-n junction, when no battery is connected across the junction:
