A random variable X has the following distribution
`{:(X=x_(1):,-2,-1,0,1,2,3),(P(X=x_(1)):,0.1,k,0.2,2k,0.3,k):}`
The value of k and its mean and variance are

A random variable X has the following distribution {:(x_(1):,0,1,2,3),(P(X=x_(1)):,2k^(2),3k^(2),5k^2,6k^(2)):} Then value of k and its mean are

A random variable X has the following distribution {:(X=x_(1):,1,2,3,4),(P(X=x_(1)):,k,2k,3k,4k):} The value of k and P(X lt 3) are equal to

A random variable X has the following distribution {:(X=x_(1):,1,2,3,4),(P(X=x_(1)):,k,2k,3k,4k):} The value of k and P(X lt 3) are equal to

A random variable X has the following distribution {:(x:,1,2,3,4),(P(X=x):,0.1,0.2,0.3,0.4):} Then its mean is

A random variable X has the following distribution {:(x,:-3,-2,-1,0,1,2,3),(P(X=x):,0.05,0.1,0.3,0,0.3,0.15,0.1):} The mean and variance are

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

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

A random variable X follows the following distribution {:(X=x_(i):,0,1,2,3),(P(X=x_(i)):,2//6,3//6,0//6,1//6,):} The mean and the variance are

A random variable has the following distribution. {:(x=x_(i),,-3,,-2,,-1,,0,,1,,2),(P(x=x_(i)),,0.1,,2K,,3K,,7K,,0.2,,0.1):} Then for the values, A = K, B = Mean, C = Variance, the ascending order is

A random variable has the following distribution. {:(x=x_(i),,-3,,-2,,-1,,0,,1,,2),(P(x=x_(i)),,0.1,,2K,,3K,,7K,,0.2,,0.1):} Then for the values, A = K, B = Mean, C = Variance, the ascending order is