A Student Takes a 10-Question, Multiple-Choice Exam with Three Choices

question 53

Multiple Choice

A student takes a 10-question, multiple-choice exam with three choices for each question and guesses on each question. Find the probability of guessing exactly 4 out of 10 correctly.

• A) 0.772
• B) 0.333
• C) 0.400
• D) 0.228

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Definitions:

Separates

Items of clothing designed to be worn in combination with others but are sold individually, allowing for mix-and-match fashion choices.

Sebaceous Glands

Small oil-producing glands in the skin that secrete sebum to lubricate the skin and hair.

Milia

Tiny, white, keratin-filled cysts that form under the skin, often appearing on the face.

Lanugo

Fine, soft hair, especially that which covers the body and limbs of a human fetus or newborn.