Question

HELP PLEASE!! Fan &&& Medal!!!
A multiple choice test has 10 questions. Each question has four answer choices.
a. What is the probability a student randomly guesses the answer and gets exactly six questions correct?
b. Is getting exactly 10 questions correct the same probability as getting exactly zero correct? Explain.
c. Describe the steps needed to calculate the probability of getting at least six questions correct if the student randomly guesses. you do not need to calculate this probability.

Answer 1

c

Answer 2

part a
hat's the binomial probability of getting exactly 6 successes in 10 trials with
the probability of 1 success in 1 trial of 1/4.
(10/6) x (1/6)^6 x (3/4)^10-6 =?

Answer 3

part b
Although both are very unlikely, it is 3 times as likely to guess an answer
incorrectly than to guess it correctly. So it is more likely to guess them all
incorrectly than all correctly. (However, in a true-false test, they would be
the same.)

Answer 4

part c
1.calculate the probacility of getting exabtly 6 correct

Answer 5

Calculate the probability of getting exactly 7 correct.

Answer 6

3. Calculate the probability of getting exactly 8 correct.

Answer 7

4. Calculate the probability of getting exactly 9 correct

Answer 8

5. Calculate the probability of getting all 10 correct.

Answer 9

Then you would add them all up and you'd get: .0197277069

Answer 10

did u understand @nessachole02

Answer 11

im still reading it all but thank you very much for it all! @swamijatin2

Answer 12

your welcome