an integer is choosen between 70 and 100 find the probability a) q prime number b) divisible by 7
is my answer correct
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yeah it's correct.............
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Answer:
(a) 5/31 (b) 5/31
Step-by-step explanation:
Given: Numbers between 70-100
To find (a) Probability of prime numbers
(b) Divisible by 7 between 70-100
Solution: (a) Probability of prime numbers
- prime numbers between 70-100 are 71,73,79,83,89 [ 5 numbers]
Probability = {Number of possible outcomes }/{Total number of outcomes}
Therefore P(A) = n(A)/n(T) = 5/31
(b) Probabilities of numbers divisible by 7 are 70,77,84,91 and 98
Therefore P(A) = n(A)/n(T) = 5/31
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