Question

2. A multiple-choice test has 25 questions. There are four choices for each question. A student...


2. A multiple-choice test has 25 questions. There are four choices for each question. A student who has not studied for the test decides to answer all questions by randomly choosing one of the four choices. What probability distribution can be used to compute his chance of correctly answering at least 15 questions?
a. Normal distribution b. Binomial distribution c. Poisson distribution d. None of these

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider a multiple-choice examination with 50 questions. Each question has four possible answers. Assume that a...
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 student must answer 45 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? Use...
Consider a multiple-choice examination with 50 questions. Each question has four possible answers. Assume that a...
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...
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?...
Consider a multiple-choice examination with 50 questions. Each question has four possible answers. Assume that a...
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?...
Consider a multiple-choice examination with 50 questions. Each question has four possible answers. Assume that a...
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?...
A student takes a multiple-choice test that has 40 questions. Each question has 5 choices. The...
A student takes a multiple-choice test that has 40 questions. Each question has 5 choices. The student did not study for the test and decides to randomly guess at each question. (Hint: The probability of guessing correctly is 0.2.) Round the probability to four decimal places. a) Find the probability the student gets exactly 10 problems correct._______________ (Show work.) b) Calculate the mean.____________ c) Calculate the standard deviation._____________ Your flight has been delayed. At Philadelphia International Airport, 90% of recent...
17. The probability of a student randomly guessing the answers to 25 multiple choice questions is...
17. The probability of a student randomly guessing the answers to 25 multiple choice questions is best modeled with the _______. A. normal distribution B. binomial distribution C. Poisson distribution D. exponential distribution
a student takes a multiple choice test that has 30 questions. each question has 5 choices....
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.
A multiple-choice test has four questions, each with five choices for the answer. Only one of...
A multiple-choice test has four questions, each with five choices for the answer. Only one of the choices is correct. You randomly guess the answer to each question. What is the probability that you answered at least one questions correctly? A. 0.5904 B.0.1808 C.0.216 D. 0.8192
A student takes a multiple-choice test that has 10 questions. Each question has five choices. The...
A student takes a multiple-choice test that has 10 questions. Each question has five choices. The student guesses randomly at each answer. 1. Find P(2) 2. P (more than 3)