The Dentist Is Pleased If, and Only If, I Both

question 228

Multiple Choice

The dentist is pleased if, and only if, I both brush and floss. The dentist is not pleased, but I brush. So, I don't floss.
-Working backward from the conclusion of this argument, which of the following is the most likely justification of the last step of the derivation?

• A) MT
• B) BMP
• C) BMT
• D) Simp
• E) DS

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Definitions:

Binomial

A type of probability distribution with two possible outcomes, used to model situations with fixed numbers of trials and the same probability of success.

Population Proportions

The ratio of members in a statistical population who have a particular attribute, compared to the total number of members in the population.

Pooled Proportion Estimate

An estimation technique that combines the proportions of two or more groups into a single overall proportion.

Sample 1

A subset of individuals or items selected from a larger population for the purpose of statistical analysis.