Answer:
P(draw a blue or red marble) = [tex]\frac{16}{21}[/tex]
Step-by-step explanation:
The bag contains 8 blue, 5 green, and 8 red marbles
Total number of marbles is 8 + 5 + 8 = 21
P(draw a blue or red marble) = P(blue marble) or P(red marble)
In probability,"Or" means addition (+)
So, P(draw a blue or red marble) = P(blue marble) + P(red marble)
P(draw a blue or red marble) = [tex]\frac{8}{21}[/tex] + [tex]\frac{8}{21}[/tex] = [tex]\frac{16}{21}[/tex]
P(draw a blue or red marble) = [tex]\frac{16}{21}[/tex]
