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1 answer:
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Let X be the random variable representing the number
of coins that Matt set aside after three flips.
We have to run n from 0 to 100 and m from 0 to (100-n),
Find the binomial law, then compute the mean like this:
Hope this gives a hint.
of coins that Matt set aside after three flips.
We have to run n from 0 to 100 and m from 0 to (100-n),
Find the binomial law, then compute the mean like this:
Hope this gives a hint.
Answer:
a) 3.6%
Step-by-step explanation:
The given question mixed up, below is the correct question:
The bumper car ride at the state fair has 2 red cars, 4 green cars, and 2 blue cars. Garth is first in line for the ride and is assigned a car at random. Patty is next in line and is randomly assigned a car. Find the probability that both events A and B occur. Express your answer as a percent. If necessary, round your answer to the nearest tenth.
Calculation:
Given that the state fair has 2 red cars, 4 green cars and 2 blue cars.
There are therefore 2+4+2 = 8 cars in total.
Probability that Events A occurs P(A) = = 4
Probability that Events B occurs P(B) =
Probability that Events A and B occur P(A ∩ B) = ×
=
= 0.0357 = 3.57% ≈ 3.6%
Therefore, the probability that both events A and B occur is 3.6%