Question
a card is selected at random from a standard deck of 52 cards. determine the following;
a. P(blackCard)
b. P(4)
c. O(king)
d. O(Not 5)
a. P(blackCard)
b. P(4)
c. O(king)
d. O(Not 5)
Answers
Reiny
P(blackCard)
How many of the 52 cards are black?
so P(blackCard) = 26/52 = 1/2
do P(4) the same way, ... how many 4's are there?
What does O(king) mean, is it short form for "odds" ?
of so, ...
prob of king = 4/52 = 1/13
prob not king = 12/13
odds in favour of a king = 1/13 : 12/13
= 1 : 12
do O(not5) the same way
How many of the 52 cards are black?
so P(blackCard) = 26/52 = 1/2
do P(4) the same way, ... how many 4's are there?
What does O(king) mean, is it short form for "odds" ?
of so, ...
prob of king = 4/52 = 1/13
prob not king = 12/13
odds in favour of a king = 1/13 : 12/13
= 1 : 12
do O(not5) the same way