If y=x^4+4, where x=any 5 digit number. find probability that y is divisible by 5
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solution:--
suppose x=0,1,2,3,4,5,6,7,8,9
value of x=10(sample space or possibility)
in which only x=0,5 is not divisible by 5
these two condition is not divisible by 5
so probability of divisible by 5= no of event (divisible by 5)/sample space(total possibility)
p (x)= 8/10
= 4/5
solution:--
suppose x=0,1,2,3,4,5,6,7,8,9
value of x=10(sample space or possibility)
in which only x=0,5 is not divisible by 5
these two condition is not divisible by 5
so probability of divisible by 5= no of event (divisible by 5)/sample space(total possibility)
p (x)= 8/10
= 4/5
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