A jar contains 8 white, 10 blue, and 18 red marbles. If one marble is drawn at random from the jar, find theprobability that:

Question

asked Mar 4, 2023 57.7k views

1 Answer

Apratimankur · Answer 1 · 2023-03-09T16:16:20+0000

To solve this problem, you can use the following formula:

$P(A)=\frac{outcome\text{ in A}}{total\text{ number of outcomes}}.$

Now, for all the problems, the total number of outcomes is:

Now, there are 8 white marbles and 10 blue marbles, therefore:

$P(white\text{ or blue\rparen= }(8+10)/(36)=(18)/(36)=(1)/(2).$

Analogously:

$P(white\text{ or red\rparen=}(8+18)/(36)=(26)/(36)=(13)/(18).$
$P(blue\text{ or red\rparen=}(10+18)/(36)=(7)/(9).$

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