Question

A bag contains 11 green marbles, 17 red marbles, 23 yellow marbles, and 34 blue marbles. diego randomly chooses a marble from the bag. what is the probability that he will choose a red or blue marble? write your answer as a decimal.

Answer 1

P(Red) = 17 / (11+17+23+34) = 17 / 85 = 1/5
P(blue) = 34/85 = 2/5

P(red or blue) = 1/5 + 2/5 = 3/5 = 0.6 Answer