Number of blue balls = 6
Number of yellow balls = 5
Number of green balls = 4
Total number of balls = 6 + 5 + 4 = 15
Number of blue & green balls = 6 + 4 = 10
P (selecting a blue or green ball on the first draw) = Number of blue & green balls / Total number of balls
P (selecting a blue or green ball on the first draw) = 10/15
P (selecting a blue or green ball on the first draw) = 2/3 = 0.66
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RainbowSalt2222 ☔
