Cards marked with numbers 5 to 50 are placed in a box and mixed thoroughly. A card is drawn from the box at random. The probability that the number on the taken card is a prime number less than 20 is *
7/46
3/23
7/45
2/15
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total no.of probability of card= 46
prime no less than 20 from 5=5,7,11,13,17,19
P(e)=6/46
=3/23
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Cards marked with numbers 5-50.
The sample size is 46.
a) A prime number less than 20
Favorable outcome ( a prime number less than 20) =6
P(A)=6/46=3/23
Hope this helps
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