an integer is chosen at random between 1 to 100 then what is tha probability if it is divisible by 8 or not divisible by 8
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There are only 2 possibility ie it can either be divisibly by 8 or can't be divisibly by 8.....
So according to me the answer should be 100/100=1(sure probability)
So according to me the answer should be 100/100=1(sure probability)
aryansingh81039:
no that is not a proper answer
Answered by
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Answer:
total no. of outcomes=98
probability of getting a no divisible by 8
favourable outcomes= lets take ap 8,16,24.......96
a(n)=a=(n-i)d ( here n is the no. of favourable outcome)
96=8+(n-1)8
(n-1)8=96-8
n-1=88/8
n-1=11
n=12
so probability=12/98
we know probability of event+ not an event =1
so 12/98 =x=1
here x is the probability of getting a no. not divisible by 8
x=1-12/98
x=86/98
hope it helps
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