Respuesta :
Answer:
15/20 or 3/4
Step-by-step explanation:
9 green marbles(GM) + 5 yellow marbles(YM) + 6 red marbles(RM) = 20 marbles total(TM)
GM = 9/20
YM = 5/20
RM = 6/20
TM = 20/20
For the probability of choosing a GM or RM you just add their respective values:
9/20 + 6/20 = 15/20
Simplified this answer is 3/4
Probability of selecting a green or red marble is 3/4
Given that;
Number of green marble = 9
Number of red marble = 6
Number of yellow marble = 5
Find:
Probability of selecting a green or red marble
Computation:
Probability of selecting a green = 9 / [9 + 6 + 5]
Probability of selecting a green = 9 / 20
Probability of selecting a red = 6 / [9 + 6 + 5]
Probability of selecting a green = 6 / 20
Probability of selecting a green or red marble = [9/20] + [6/20]
Probability of selecting a green or red marble = 15 / 20
Probability of selecting a green or red marble = 3/4
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https://brainly.com/question/11234923?referrer=searchResults
