Hi

questions, each with 4 possible answers: p(c0rrect) = .25

Using TI Calculator

P(x ≥ 15) = 1 – binomcdf(n, p, largest x-value) = 1 - binomcdf(25, .25, 14) 

RELATED QUESTIONS

An exam consists of 20 multiple choice questions, each with 5 answer choices.  If a... (answered by ikleyn)

A multiple choice exam has ten questions and each question had 4 possible answers.  In... (answered by stanbon)

Sam sits for a multiple-choice exam with 10 questions, each with 4 possible answers only... (answered by greenestamps)

A student is taking a multiple choice test with 3 questions, each of which has five... (answered by ikleyn)

The exam consists of 10 questions, the first 4 are True-False questions and the last 6... (answered by robertb)

Test consists of 10 multiple choice questions, each with 5 possible answers; one of which  (answered by drk)

A quiz consists of 6 multiple-choice questions. Each question has 4 possible answers. A... (answered by Edwin McCravy)

An exam consists of 20 multiple choice questions, each with 5 answer choices.  If a... (answered by ikleyn)

Estimate the indicated probability by using the normal distribution as an approximation... (answered by rothauserc)