Question 828525: cards marked with the numbers 2 to 101 are placed in a box.One card is drawn from this box.Find the proability that the number on the card is * An odd number * An even number *A number less than 14 *A number is a perfect square *A prime number less than20
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! Total number of cards, 
50 are even, 50 are odd.
P(odd)=
P(even)=
Cards less than 14 : {2,3,4,5,6,7,8,9,10,11,12,13} 12 instances or P(N<14)=
Perfect squares : {4,9,16,25,36,49,64,81,100} 9 instances or P(perf. sq.)=
Prime number less than 20: {2,3,5,7,11,13,17,19} 8 instances or P(P<20)=
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