The Taste Test for PTC (Phenylthiourea) Is a Common Class

question 163

Essay

The taste test for PTC (phenylthiourea) is a common class demonstration in the study of genetics. It is known that 70% of Canadians are "tasters" and 30% are "non-tasters." Suppose a genetics class of size 20 does the test to see if they match the Canadian percentage of "tasters" and "non-tasters." (Assume the assignment of students to classes constitutes a random process.)
a. What is the probability distribution of the random variable x, the number of "non-tasters" in the class?
b. Find P(3 < x < 9).
c. Find the mean of x.
d. Find the variance of x.

Recognize the relationship between price, marginal revenue, and output level in a monopoly setting.

Analyze the effect of barriers to entry on monopolistic markets and competition.

Understand the strategic behavior of monopolists to maximize profit and how it compares to competitive markets.

Learn about the economic outcomes of monopolistic pricing and output decisions relative to competitive markets.

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