AP BIOLOGY

HEREDITY

BASICS OF PROBABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be blue?
A
5/6
B
1/2
C
1/3
D
1/6
Explanation: 

Detailed explanation-1: -The probability that the marble you pick will be red or blue is 0.8334.

Detailed explanation-2: -The probability of drawing a blue marble = 1/5. The 1/5 probability of drawing a blue marble assumes all 5 marbles are in the jar.

Detailed explanation-3: -So the probability picking a red marble, and then a blue marble is 943⋅1143≈0.054.

Detailed explanation-4: -Answer: HENCE, the probability of getting any one colour is 1.

There is 1 question to complete.