A Student Answers All 48 Questions on a Multiple-Choice Test

question 22

Multiple Choice

A student answers all 48 questions on a multiple-choice test by guessing. Each question has four possibleanswers, only one of which is correct. Find the probability that the student gets exactly 15 correct answers. Usethe normal distribution to approximate the binomial distribution.

• A) 0.0823
• B) 0.8577
• C) 0.7967
• D) 0.0606

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Definitions:

Professional Competence

The level of proficiency and skill necessary to perform the duties of a specific profession effectively.

Psychotherapists

Professionals trained to treat psychological disorders and mental distress through verbal and psychological techniques.

Illusory Correlation

The perception of a relationship between two variables even when no such relationship exists.

Confirmation Bias

The inclination to seek out, understand, prefer, and remember information in a manner that validates one's existing beliefs or theories.