AP BIOLOGY

HEREDITY

BASICS OF PROBABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which events are dependent?
A
selecting a king from a standard 52 card deck and then a queen without replacing the king
B
Flipping a coin and rolling a 4-sided die
C
Having two children both with blue eyes
D
Making 2 three-pointers in a row during a basketball game
Explanation: 

Detailed explanation-1: -Now, as one card is drawn from 52 cards and this card is not returned to the deck. So the number of remaining cards in the deck becomes 51. Number of queens in a deck are 4. Therefore, the probability of selecting a king and then a queen is 0.006.

Detailed explanation-2: -Complete step-by-step answer: Hence the probability of getting a king or a queen out of 52 cards is 2/13.

Detailed explanation-3: -There is roughly a 0.6% chance of drawing a king, and then drawing a queen without replacement from a deck of cards.

Detailed explanation-4: -Hence for drawing a card from a deck, each outcome has probability 1/52. The probability of an event is the sum of the probabilities of the outcomes in the event, hence the probability of drawing a spade is 13/52 = 1/4, and the probability of drawing a king is 4/52 = 1/13.

There is 1 question to complete.