Exercise 33 shows the results of a Gallup Poll about energy. Suppose we select three people at random from this sample.
Response Number
Oil, gas, coal …………….. 164
Wind and solar ………….. 312
Equally Important ……….. 37
No Opinion ……………… 16
Total …………………….. 529
a) What is the probability that all three responded "Develop wind and solar"?
b) What is the probability that none responded "Equally important"?
c) What assumption did you make in computing these probabilities?
d) Explain why you think that assumption is reasonable.