Chapter 4.2, Problem 66E

Protecting the Environment. A survey was conducted in Canada to ascertain public opinion about a major national park region in the Banff-Bow Valley. One question asked the amount that respondents would be willing to contribute per year to protect the environment in the Banff-Bow Valley region. The following frequency distribution was found in an article by J. Ritchie et al. titled “Public Reactions to Policy Recommendations from the Banff-Bow Valley Study” (Journal of Sustainable Tourism, Vol. 10, No. 4, pp. 295–308).

Contribution ($)	Frequency
0	85
1–50	116
51–100	59
101–200	29
201–300	5
301–500	7
501–1000	3

For a respondent selected at random, let

A = event that the respondent would be willing to contribute at least $101,

B = event that the respondent would not be willing to contribute more than $50,

C = event that the respondent would be willing to contribute between $1 and $200, and

D = event that the respondent would be willing to contribute at least $1.

Describe the following events in words, and determine the number of outcomes (respondents) that make up each event.

1. a. (not D)
2. b. (A & B)
3. c. (C or A)
4. d. (B & D)