Students Who Have Completed a Speed Reading Course Have Reading

question 73

Multiple Choice

Students who have completed a speed reading course have reading speeds that are normally distributed with a mean of 950 words per minute and a standard deviation equal to 220 words per minute. If two students were selected at random, what is the probability that they would both read at less than 400 words per minute?

• A) 0.4938
• B) 0.0062
• C) 0.00004
• D) 0.2438

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Definitions:

Polymer

Macromolecule consisting of covalently bonded monomers; for example, a polypeptide is a polymer of monomers called amino acids.

Monomers

Small molecules that can join together to form polymers, serving as the building blocks for various macromolecules.

COOH

A carboxyl group, a functional group consisting of a carbon atom double-bonded to an oxygen atom and also bonded to a hydroxyl group, characteristic of organic acids.

Peptide

Short chains of amino acid monomers linked by peptide bonds, functioning in diverse biological roles, including as hormones, neurotransmitters, and antibiotics.