you randomly draw a marble from a bag of marbles that contains 8 blue marbles, 5 green marbles, and 8 red…

you randomly draw a marble from a bag of marbles that contains 8 blue marbles, 5 green marbles, and 8 red marbles. what is p(draw a blue or red marble)? if necessary, round your answer to 2 decimal places.
Answer
Answer:
0.76
Explanation:
Step1: Calculate total marbles
$8 + 5+8=21$
Step2: Calculate blue or red marbles
$8 + 8 = 16$
Step3: Calculate probability
$P=\frac{16}{21}\approx0.76$