A box contains x white balls,y red balls, z blue balls. A ball is thrown at random, find the probability of getting a 1,neither white or blue
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A bag contains x white, y red and z blue.
A ball is drawn at the random, then the probability of drawing a blue ball is
=
total number of balls in abag
number of blue balls
.
∴P(E)=
x+y+z
z
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