SOLUTION: A card is drawn from a deck of cards one through twenty. the card is Not placed and another card is drawn. find the probability that a prime number is drawn and then a composite nu
Algebra ->
Probability-and-statistics
-> SOLUTION: A card is drawn from a deck of cards one through twenty. the card is Not placed and another card is drawn. find the probability that a prime number is drawn and then a composite nu
Log On
Question 144795: A card is drawn from a deck of cards one through twenty. the card is Not placed and another card is drawn. find the probability that a prime number is drawn and then a composite number. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A card is drawn from a deck of cards one through twenty. the card is Not replaced and another card is drawn. find the probability that a prime number is drawn and then a composite number.
-------------
# of prime: 8
# of composite: 12
-----------
Ans: P(prime and composite) = P(prime)*P(composite | prime)
= 8/20 * 12/19 = 0.25263...
-----------
Cheers,
Stan H.
(