Which of the following four graphs of the binomial distribution, all with n = 10, corresponds to the distribution with the value for p closest to 0.5?

A researcher is investigating whether two weeks of caring for a foster dog can alleviate symptoms of depression. He uses a coin flip to randomly assign 20 of the 40 subjects with depression to the treatment group who will care for a foster dog. The other 20 subjects are instructed to rest for 30 minutes each day throughout the treatment period. After two weeks, he administers a survey to assess their depression symptoms. Which of the following key principle or method of experimental design is missing?

A drug company is considering investing $100 million today to bring a weight loss pill to the market. At the end of one year, the firm will know the payoff: there is a 0.50 probability that the pill will sell at a high price and generate $30 million per year of profit forever and a 0.50 probability that the pill will sell at a low price and generate $1 million per year of profit forever. The interest rate is 10%. What is the expected net present value of this investment?

In a Cournot market with two firms, the inverse market demand curve is P = 50 – 2Q, where Q = q1 + q2 (Firm 1’s output = q1; Firm 2’s output = q2). If Firm 2 produces 15 units of output, what is Firm 1’s residual demand curve?

A market is characterized with the inverse demand curve P = 220 – 3Q, and marginal cost of production is constant at $10. If this market is served by a two-firm cartel that evenly splits the market output, how much output does each firm produce?

If a firm practices third-degree price discrimination, the price charged should be higher in the market where demand is:

All hospitals are allowed to require drug testing as a condition of employment.

Who is appointed by the court to defend a lawsuit on behalf of an incapacitated person?

Match the appropriate action for the safeguarding of medical records.

Color vision deficiency is a form of blindness.