A number is selected at random from the numbers 1 to 30. The probability that it is a prime number is
a) 2/3
b) 1/6
c) 1/3
d) 11/30
Answers
Answered by
38
The correct answer is (c) - 1/3..
Hope it helps u....
Hope it helps u....
Answered by
87
HEYA !
TOTAL POSSIBLE OUTCOMES - 30
Prime numbers between 1 and 30 are 2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 and 29.
TOTAL FAVOURABLE OUTCOMES - 10
P (E) = Total no. of favourable outcomes/ Total no. of possible outcomes
i.e. 10 / 30 = 1 / 3 .
Hence , option (c) 1/3 is correct.
Hope this helps mate!
TOTAL POSSIBLE OUTCOMES - 30
Prime numbers between 1 and 30 are 2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 and 29.
TOTAL FAVOURABLE OUTCOMES - 10
P (E) = Total no. of favourable outcomes/ Total no. of possible outcomes
i.e. 10 / 30 = 1 / 3 .
Hence , option (c) 1/3 is correct.
Hope this helps mate!
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