If a card is chosen from a standard deck of cards, what is the probability of getting a five or a seven?

A numerical value calculated from sample is called________?

Coefficient of variation (C.V) is given below:________?

________ are said to be exhaustive if they constitute the entire sample space?

Sum of deviations will be zero if it is taken from________?

The first hand and unorganized form of data is called________?