Answer:
15 white or gray marbles
Step-by-step explanation:
Be
A = 6 red marbles
B = 2 white marbles
C = 1 gray marble
R = 45 process repetition
T = 6 + 2 + 1 = 9 Total marbles
P (B U C) = Possibility of obtaining white or gray marbles once
The probability of an event is calculated by dividing the number of successes by the total possibilities, in this case that is
\(P(B)=\frac{2}{9}\)
\(P(C)=\frac{1}{9}\)
\(P(B U C)=\frac{2}{9}+\frac{1}{9}=\frac{3}{9}=\frac{1}{3}\)
As the process is repeated 45 times, the possibility of obtaining white or gray marbles is the multiplication of
\(45*\frac{1}{3}=15\) white or gray marbles
Hope this helps!
