- Two dice are rolled; find the probability of getting
(a) a sum of 8
(b) doubles
(c) a sum greater than 10
(d) a sum less than 5 - A card is drawn from a deck; find the probability of getting
(a) the six of diamonds
(b) a queen
(c) a heart
(d) a club or a spade
(e) a red card - A couple has three children; find the probability that the children are
(a) all boys
(b) all boys or all girls
(c) exactly two boys and one girl - Two dice are rolled; find the probability of getting a sum of seven or
eleven. - In a cooler there are 8 cans of cola and 4 cans of ginger ale. If a
person selects a can of soda without looking at it, find the probability
that it is a can of ginger ale. - In a box of Popsicles there are 3 orange ones, 5 cherry ones, 4 grape
ones, and 4 banana ones. If a child selects one without looking at it,
find the probability that it is grape. - Fifty tickets are sold for a prize. If you buy 5 tickets, find the prob-
ability that you will win the prize. - In an elementary school there are 87 girls and 49 boys. If one student
is selected by a drawing to attend a conference, find the probability
that the student is a girl. - If an organization wishes to schedule a national conference and they
select a state by drawing it out of a hat, find the probability that the
state’s name begins with the letter M.
SOLUTIONS:
1.
(a) There are six outcomes in the sample space and one outcome is
a 5; therefore,P(5)¼^16.LESSON 22 Word Problems in Probability 273