If mean and coefficient of variation of the marks of n students is 20 and 80 respectively. What will be variance of them

Topics: Part-C: Statistics

Related Questions in this Topic

• If P(A) = 1 / 2 , P(B) = 1 / 3 and P(A ∩ B) = 1 / 4 , then the value of P(A ∪ B) is:
• A card is drawn from each of two well-shuffled packs of cards. The probability that at least one of them is an ace is
• A variable is known to be ______ if it can assume any value from a given interval.
• When the data are classified in respect of successive time points, they are known as ______
• The appropriate measure of dispersion for open-end classification is