most canadians feel that health care is the most important issue. research canada: An Alliance for Health Discovery recently released the result of its first public opinion survey on Health Research in Canada. The result are shown in the table: OPINION PROPORTION Very impotant 0.88 somewhat important 0.10 not very important 0.01 not at all important 0.01 suppose that one person is randomly selected and his or her opinion on this question is recorded. a. what are the simple events in the experiment? b. are the simple events in part a equally likely? if not, what are the probabilities? c. what is the probability that the one person feels health care is at least somewhat important? d. what is the probability that the person feels health care is either not very important or not at all important? Solution a) There are four simple events: 1)Choosing very important 2) Somewhat important 3) not very important 4) not at all important b) Not equally likely. Probability is equal to population proportion: Very important: Probability: 0.88 somewhat important: Probability: 0.10 not very important: Probability: 0.01 not at all important: Probability: 0.01 c) Probability of healthcare at least somewhat important: Very important: Probability: 0.88 + somewhat important: Probability: 0.10 =0.98 d)Probability that a person thinks that health care is either not very important or not important at all: not very important: Probability: 0.01 + not at all important: Probability: 0.01 = 0.02.

1. most canadians feel that health care is the most important issue. research canada: An Alliance for
Health Discovery recently released the result of its first public opinion survey on Health
Research in Canada. The result are shown in the table:
OPINION PROPORTION
Very impotant 0.88
somewhat important 0.10
not very important 0.01
not at all important 0.01
suppose that one person is randomly selected and his or her opinion on this question is recorded.
a. what are the simple events in the experiment?
b. are the simple events in part a equally likely? if not, what are the probabilities?
c. what is the probability that the one person feels health care is at least somewhat important?
d. what is the probability that the person feels health care is either not very important or not at
all important?
Solution
a) There are four simple events: 1)Choosing very important 2) Somewhat important
3) not very important 4) not at all important b) Not equally likely. Probability is equal to
population proportion: Very important: Probability: 0.88 somewhat important: Probability: 0.10
not very important: Probability: 0.01 not at all important: Probability: 0.01 c) Probability of
healthcare at least somewhat important: Very important: Probability: 0.88 + somewhat
important: Probability: 0.10 =0.98 d)Probability that a person thinks that health care is either not
very important or not important at all: not very important: Probability: 0.01 + not at all
important: Probability: 0.01 = 0.02