Probability
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1. In a bag there are 2 red, 3 yellow, 4 green, and 6 blue marbles.
What is the probability of P (yellow or green)?
Choose the best answer from the options below:
A 6 / 10
B 7 / 15
C 3 / 10
D 2 / 15
2. A spinner has the numbers 1 thru 9. The spinner is spun once.
What is the probability of P (3, 6 or 8)? Write the answer as a percent.
Choose the best answer from the options below:
A 30%
B 40%
C 33.33%
D 100%
3. A spinner has the numbers 1 thru 9.
What is the probability of P(less than 6)? Write the answer as a decimal.
Choose the best answer from the options below:
A 0.222
B 0.333
C 0.444
D 0.555
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Solution Summary
Neat and step-wise solutions are provided below.
Solution Preview
(1) Total number of marbles = 15
P(Y or G) = P(Y) + P(G) = 3/15 + 4/15 = 7/15
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