PROBABILITY MATH

Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each question has 5 possible answers.

Explain to me the answer?

  1. 0
  2. 1
asked by HM
  1. The prob of answering a question right (R) is 1/5, and the prob of answering it wrong (W) is 4/5
    So you want the specific order of
    RRRRW which would be (1/5)^4 (4/5) = 4/3125

    1. 0
    posted by Reiny
  2. I don't think it requires for it to be times by (4/5)

    it is just asking for possibility of it being correct 4 times the first times..

    so the answer is 1/625

    :)

    thank you reiny

    1. 0
    posted by HM
  3. A researcher whishes to estimate the proportion of college students who cheat on exams.

    1. 0
    posted by Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. Stats

    An instructor gives a test with 20 multiple choice questions. There are 4 responses per questions and only one choice correct. The test also has 30 True/False questions. Determine the probability a student randomly guessing on all
  2. MATH Prob.

    Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each question has 3 possible answers.
  3. stas

    find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses are made and each question has six possible answers
  4. Help Me On Math Please, If Anyone Is Available

    A multiple choice test has 5 questions each with 5 possible answers. Find the probability of answering all the questions correctly. A. 1/3,125 B. 1/25 C. 1/625 D. 1/125 I'm on a test, and this is the only one I'm stuck on.
  5. MATH Prob.

    Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each question has 3 possible answers. A) 4/3 B) 1/81 C)1/64 D)3/4 I automatically think D.
  6. MATH!

    A multiple choice test has 5 questions each with 5 possible answers. Find the probability of answering all the questions correctly. A. 1/3,125 B. 1/25 C. 1/625 D. 1/125 Is it B?
  7. Math Help plz

    A multiple choice test has 5 questions each with 5 possible answers. Find the probability of answering all the questions correctly. A. 1/3,125 B. 1/25 C. 1/625 D. 1/125 How do you do this problem?
  8. HElp MaTh PleasE!

    A multiple choice test has 5 questions each with 5 possible answers. Find the probability of answering all the questions correctly. A. 1/3,125 B. 1/25 C. 1/625 D. 1/125 How do you do this problem?
  9. college

    A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering 3 OR 4 questions correctly.
  10. satistics

    A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering more than 4 questions correctly.

More Similar Questions