Question

100 slips of red, black and white colours are put in a box. Their number
is recorded as follows:
COLOUR
RED
BLACK
WHITE
NUMBER
20
45
35
One slip is drawn at random, find the probability that the slip drawn is
) Black
Not red
​

Answer 1

Answer:

1.s={ 20+45+35}

S={100} n(S) =100

2.Event A: slip drawn is black

A={45} n(A)=45

p(A)=n(A)/n(S)

=45/100

=9/20.

3.Event B: slip drawn is not red.

B={45+35}

B={80}

n(B)=80

p(B)=n(B)/n(S)

=80/100

=4/5.

is correct answer.......

Step-by-step explanation:

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