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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?

User Sentient
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4 votes
30+50+20=100 = altogether marbles
P(white)= 20/100 =1/5
P(white)=1/5
User Cybis
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8.2k points
7 votes

|\Omega|=100\\ |A|=20\\ P(A)=(20)/(100)=(1)/(5)=20\%
User Soufiane Touil
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