At a College, 70 Percent of the Students Are Women

question 100

Multiple Choice

At a college, 70 percent of the students are women and 50 percent of the students receive a grade of C. 25 percent of the students are neither female nor C students. Use this contingency table. If a student has received a grade of C, what is the probability that the student is female?

• A) 0.45
• B) 0.90
• C) 0.70
• D) 0.64
• E) 0.50

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Definitions:

Racemate

A mixture of equal amounts of two enantiomers, which are molecules that are mirror images of each other.

Achiral Product

A chemical product that is superimposable on its mirror image and does not display chirality.

Secondary Alcohol

An alcohol in which the hydroxyl group (-OH) is attached to a carbon atom that is connected to two other carbon atoms.

Ethylmagnesium Bromide

A Grignard reagent with the formula CH3CH2MgBr, used in the formation of carbon-carbon bonds in organic synthesis.