Question

a number is selected at random from 10 to 18 find the probability that number is a prime number

Answer 1

Total Outcomes= 10,11,12,13,14,15,16,17 and 18.
Total No. Of Outcomes = 9.
Favourable Outcomes= 11.13.17.
No.= 3.
P(E) = 3/9=1/3.
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Answer 2

Hey dear

Your answer here

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Here given this number

10,11,12,13,14,15,16,17,18



Here total number is ➡️ 9


We find to probability of prime number between 10 to 18


Prime number ➡️ 11,13,17


Three numbers are prime number


So....




$probability \: = \frac{3}{9} = \frac{1}{3} = 0.33 \\ \\ \\ hope \: it \: helpful \:$