Question

When taking multiple choice test with 4 options for answers, there is a 25% chance that you will get the question right just by random guess. You wish to determine how many correct answers you can get just by random guessing on a 100 question multiple choice test.

np>10np>10, At least 10 expected successes.

n(1−p)>10n(1−p)>10, At least 10 expected failures.

Approximate with N(np,np(1−p))

Binomial Distribution

None of the above.

Normal Population Distribution

Uniform Distribution

Answer 1

From the given information,

The required correct answer is,

np>10, At least 10 expected successes.

n(1−p)>10, At least 10 expected failures.

Hence,

Approximate with N(np,np(1−p)).

Thank you.