Why measurement is important in our life?

Normal yağmur ile asit yağmuru arasındaki fark nedir

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Which choice represents the sample space ,s for this event