# 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 the 7 of hearts?
 A 1/4 B 1/52 C 1/26 D 1/13
Explanation:

Detailed explanation-1: -A standard deck contains an equal number of hearts, diamonds, clubs, and spades. So the probability of drawing a heart is 14 . There are four 7s in a standard deck, and there are a total of 52 cards. So the probability of drawing a7 is 113 .

Detailed explanation-2: -There are 4 sevens so P(seven) =524=131.

Detailed explanation-3: -Expert-Verified Answer In a standard deck of 52 playing cards, the probability of drawing a heart is 13/52 = 1/4. A standard deck of 52 playing cards consists of 4 suits, therefore, a total of 52/4 = 13 kinds in each suit. 4 suits are clubs, spades, diamonds and hearts.

Detailed explanation-4: -(The number of ways 7 different cards can be ordered-so your answer is :133, 784, 560.

Detailed explanation-5: -Hence the Probability that the card drawn is a heart or a 7 is 0.3077.

There is 1 question to complete.