Question

Answer parts A, B, and C based on the following scenario.

Ajar has 20 marbles: 5 green, 7 blue, 8 red.
A. What is the probability of randomly choosing a red marble? Answer with a
simplified fraction or a percentage rounded to the nearest whole number.
B. What is the probability of randomly choosing a red or a green marble? Answer
with a simplified fraction or a percentage rounded to the nearest whole number.
C. What is the probability of randomly choosing a red and then a green marble (keep
the red marble when you choose it)? Answer with a simplified fraction or a
percentage rounded to the nearest tenth.

Answer 1

Explanation:

for red =8/20=4/10=2/5

• the probability ofchoosing red marble is 2/5

for red or green=5+8/20

=12/20=6/10=3/5

• the probability of choosing red or green marble is 3/5

i thing we sum up

5/8+2/5

=41/40