Question

An integer is chosen between 0 to 100. What is the probability that it is (1) divisible by 7 (2) not divisible by 7

Answer 1

Total numbers = 99.... (1 to 99)

1) Divisible by 7 under 100 = 14 (cuz 14*7 = 98)

Probability = 14/99

2) Probability = 1 - 14/99

= 85/99

Answer 2

Hey friend

question 1.


Let the Event be E

Total no. of Outcome= 99(n)

Total no. of possible outcomes for
Event E=>7,14,21,28,35,42,49,56,63,70,77
84,91,98=14(m)

P(E)Probability for Event E=m/n=14/99


Question 2.

Let the Event be E
Probability for Event E= 1-P(E)
Probability=1-14/99
Probability=85/99


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