An integer is chosen between 0 and 100. what is the probability that is ( I) divisible by 7 ( ii) not divisible by 7
Answers
Answered by
14
Step-by-step explanation:
The total numberofintegers betweenOand 100: 99
(i) Let E, = Event M‘ choosing an integer which is
divisible by 7
{7, 14, 21, 28, 35, 42, 49, 56,
63, 70, 77, 84, 91, 98}
Total number of favourable events = 14
Hence, required probability, P(E1) = 14 / 99
(ii) Let E2 = Event of choosing an integer which is not
divisible by 7
Then, total number of favourable outcomes,
n(E2) = n(S) - n(E1) = 99 - 14 = 85
∴ Required probability, P(E2) = 85 / 99
Answered by
2
Answer:
- no. divisible by 7
7, 14 , 21, 28 , 35, 42, 49 , 56 , 63 , 70 , 77 , 84, 91, 98 ...
probability : 14/100
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