Question

an integer is chosen at random between 1 and 100 .find the probablity that it is
a)divisible 8
b)not divisible 8

Answer 1

Heya....!!

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Numbers divisible by 8 between 1 and 100 are 8 ,16 , 24 , 32 , 40 , 48 , 56 , 64 , 72 , 80 , 88 , 96

Outcomes possible for integers divisible by 8 are 12

Probability of getting integers divisible by 8 = possible outcomes / Total number of outcomes.

= 12/100

= 3/25

Probability of getting integers not divisible by 8 = Possible outcomes / Total number of outcomes

= 88/100

= 22/25

# Hope it helps #

Answer 2

1) it is divisible by 8

total outcomes =100
it is divisible by 8=12

12/100 =3/25

2) it is not divisible by 8=

total outcomes =100
not divisible by 8=88

88/100 =22/25