SOLUTION: A multiple-choice test contains 12 questions, each with four answers. Assume a student just guesses on each question.
(Please enter your answers as fractions in simplest f
Algebra ->
Probability-and-statistics
-> SOLUTION: A multiple-choice test contains 12 questions, each with four answers. Assume a student just guesses on each question.
(Please enter your answers as fractions in simplest f
Log On
The probability of exactly successes in trials where the probability of success on any given trial is is given by:
The probability of at least successes in trials where the probability of success on any given trial is is given by:
The probability of at most successes in trials where the probability of success on any given trial is is given by:
Your number of trials is 12, and the probability of success on any trial is 1 in 4 or 0.25. Note that "more than 5" is the same as "at least 6", and "less than 4" is the same as "at most 3". You can do your own arithmetic.
John
My calculator said it, I believe it, that settles it
