A box contains 22 red marbles, 52 white marbles, and 10 blue marbles. If a marble...
A box contains 22 red marbles, 52 white marbles, and 10 blue marbles. If a marble is randomly selected from the box, what is the probability that it is red or blue? Express your answer as a simplified fraction or a decimal rounded to four decimal places.
Homework Answers
Number of red or blue marbles = 22 + 10 = 32
Number of total marbles = 22 + 52 + 10 = 84
Hence,
P(Red or Blue marble) = 32/84 = 8/21
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