A jar contains 30 red marbles, 50 blue marbles, and 20 white marbles. you choose one marble from the jar at random. what is the theoretical probability of choosing a white marble?

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asked Mar 4, 2019 231k views

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A jar contains 30 red marbles, 50 blue marbles, and 20 white marbles. you choose one marble from the jar at random. what is the theoretical probability of choosing a white marble?

Mathematics
high-school

Sentient asked

by Sentient

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30+50+20=100 = altogether marbles
P(white)= 20/100 =1/5
P(white)=1/5

Cybis answered Mar 4, 2019

by Cybis

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7 votes

$|\Omega|=100\\ |A|=20\\ P(A)=(20)/(100)=(1)/(5)=20\%$

Soufiane Touil answered Mar 10, 2019

by Soufiane Touil

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