Find the mean `bar x` of first 8 natural numbers. Also verify `sum` ( x - `bar x` ) = 0

Find the arithmetic mean of first 8 natural numbers.

Find the sum of first 8 even natural numbers

Find the mean (overline(x)) of first 5 even natural numbers.

Let X_(n) denote the mean of first n natural numbers, then the mean of X_(1), X_(2), ………….., X_(100) is

Let X_(n) denote the mean of first n natural numbers, then the mean of X_(1), X_(2), ………….., X_(100) is

Two numbers are selected at random (without replacement) from first 7 natural numbers. If X denotes the smaller of the two numbers obtained, find the probability distribution of X. Also, find mean of the distribution.

Two numbers are selected at random (without replacement) from first 7 natural numbers. If X denotes the smaller of the two numbers obtained, find the probability distribution of X. Also, find mean of the distribution.

A natural number x is chosen at random from the first 100 natural numbers. Find the probability that ((x-20)(x-40))/((x-30)) lt 0 .