Question

The probability that a student gets a multiple choice question correct on a mathematics test is 0.80. use the normal approximation to the binomial method to find the probability that a student gets a B or C (21-26 correct answers) on a test with 30 questions

Answer #1

Here is a simple probability model for multiple-choice tests.
Suppose that each student has probability p of correctly
answering a question chosen at random from a universe of possible
questions. (A strong student has a higher p than a weak
student.) The correctness of answers to different questions are
independent. Jodi is a good student for whom p = 0.83.
(a) Use the Normal approximation to find the probability that
Jodi scores 78% or lower on a 100-question test. (Round...

a student takes a multiple choice test that has 30 questions.
each question has 5 choices. the student did not study for the test
and decides to randomly guess at each question. a) find the
probability the student gets exactly 10 problems correct. b)
calculate the mean. c) calculate the standard deviation. statistics
and probability.

If a student randomly guesses at 15 multiple-choice questions,
find the probability that the student gets more than 2 correct.
Each question has 4 possible choices.

Here is a simple probability model for multiple-choice tests.
Suppose that each student has probability p of correctly
answering a question chosen at random from a universe of possible
questions. (A strong student has a higher p than a weak
student.) The correctness of answers to different questions are
independent. Jodi is a good student for whom p = 0.83.
(a) Use the normal approximation to find the probability that
Jodi scores 78% or lower on a 100-question test.(Round the...

Consider a multiple-choice examination with 50 questions. Each
question has four possible answers. Assume that a student who has
done the homework and attended lectures has a 65% chance of
answering any question correctly. (Round your answers to two
decimal places.)
(a)
A student must answer 44 or more questions correctly to obtain a
grade of A. What percentage of the students who have done their
homework and attended lectures will obtain a grade of A on this
multiple-choice examination?...

Here is a simple probability model for multiple-choice tests.
Suppose that each student has probability p of correctly
answering a question chosen at random from a universe of possible
questions. (A strong student has a higher p than a weak
student.) The correctness of answers to different questions are
independent. Jodi is a good student for whom p = 0.82.
(a) Use the Normal approximation to find the probability that
Jodi scores 78% or lower on a 100-question test. (Round...

Consider a multiple-choice examination with 50 questions. Each
question has four possible answers. Assume that a student who has
done the homework and attended lectures has a 65% chance of
answering any question correctly. (Round your answers to two
decimal places.)
(a)
A student must answer 43 or more questions correctly to obtain a
grade of A. What percentage of the students who have done their
homework and attended lectures will obtain a grade of A on this
multiple-choice examination?...

Consider a multiple-choice examination with 50 questions. Each
question has four possible answers. Assume that a student who has
done the homework and attended lectures has a 75% chance of
answering any question correctly. (Round your answers to two
decimal places.)
(a) A student must answer 43 or more questions correctly to
obtain a grade of A. What percentage of the students who have done
their homework and attended lectures will obtain a grade of A on
this multiple-choice examination?...

Here is a simple probability model for multiple-choice tests.
Suppose that each student has probability p of correctly
answering a question chosen at random from a universe of possible
questions. (A strong student has a higher p than a weak
student.) The correctness of answers to different questions are
independent. Jodi is a good student for whom p = 0.81.
(a) Use the Normal approximation to find the probability that
Jodi scores 75% or lower on a 100-question test. (Round...

A student randomly guesses at 5 multiple choice questions.
Find the probability that the student guesses 3 or more correctly.
Each question has 8 possible answers with only one correct answer,
and each question is independent of every other question. (Round to
the nearest ten thousandths. I.e. 4 decimal places. Use the
Binomial)

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 5 minutes ago

asked 25 minutes ago

asked 25 minutes ago

asked 25 minutes ago

asked 28 minutes ago

asked 30 minutes ago

asked 33 minutes ago

asked 49 minutes ago

asked 49 minutes ago

asked 59 minutes ago

asked 1 hour ago

asked 1 hour ago