If one card is drawn from a standard 52 card playing deck, determine the probability of getting a ten, a king ora diamond. Round to the nearest hundredth.
A) 0.37
B) 0.40
C) 0.31
D) 0.29

Question

Quizplus · Accepted Answer

The probability of drawing a ten (4/52), a king (4/52), or a diamond (13/52) must be calculated. However, the tens and kings that are diamonds are counted twice in this method. There are 2 cards (the ten and king of diamonds) that are counted in both the diamonds and the tens/kings categories, so we subtract their probability once to correct for this double counting. The correct calculation is (4+4+13-2)/52 = 19/52, which is approximately 0.37 when rounded to the nearest hundredth.

If One Card Is Drawn from a Standard 52 Card