AP BIOLOGY

HEREDITY

BASICS OF PROBABILITY

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Given a standard deck of cards, what is the probability of randomly choosing a 7 or an 8?
 A 4/52 or 1/13 B 13/52 or 1/4 C 8/52 or 2/13 D 13/26 or 1/2
Explanation:

Detailed explanation-1: -What is the probability of drawing a diamond card or an ace from a pack of 52 playing cards? The probability of drawing a diamond-faced card from a pack of 52 playing cards is easy to determine. Since there are 13 diamond-faced cards in the deck, the probability becomes 13/52 = 1/4 = 0.25.

Detailed explanation-2: -There are four fives and four sevens in a standard 52-card deck. Therefore for this simple event there are 8 chances out of 52 of drawing a 5 or a 7.

Detailed explanation-3: -Expert-Verified Answer There are 4 cards of number eight in a deck of 52 cards, namely: 8 Spades, 8 Diamond, 8 Clubs, and 8 Hearts. So the probable outcomes are 4 and the total cards are 52. So, x 100 = 1/13. So there is a 1/13 chance for getting an eight, i.e, for every 13 cards, one card will be an eight.

Detailed explanation-4: -There are four kings and four sevens in a 52 card deck, so the probability of getting a king or a seven is 8/52 or 2/13.

There is 1 question to complete.