Question

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. Find the probability
of drawing a white or red marble on the first draw.
125
12
01
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Answer 1

$|\Omega|=20+16+4=40\\|A|16+4=20\\\\P(A)=\dfrac{20}{40}=\dfrac{1}{2}$

Answer 2

Answer:

1/2

Step-by-step explanation:

16+4 =20 red and white marbles

40 marbles in all

20/40= 1/2