# math

posted by .

A multiple-choice test has 10 questions. Each question has 5 choices. If a student answers each question by guessing randomly, find the probability that the student gets:

a) at most 4 questions correct

b) at least 7 questions correct

Please show your work.

• math -

5,7

## Respond to this Question

 First Name School Subject Your Answer

## 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. ### stats

a student randomly guesses at five multiple-choice questions, each question has five possible choices (suppose the choice for each question is independent): a) Find the probability that the student gets exactly three correct. b) What …
3. ### advanced statistics

suppose a student takes a multiple choice test with 10 questions. suppose each question has 4 possible answers. if the student guesses randomly on each questions,what is the probability that the student gets exactly 6 correct?
4. ### statistic

A multiple-choice test has 48 questions, each with four response choices. If a student is simply guessing at the answers, a. What is the probability of guessing correctly for any question?
5. ### psychology statistics for behavioral sciences

A multiple-choice test has 48 questions, each with four response choices. If a student is simply guessing at the answers, a. What is the probability of guessing correctly for any question?
6. ### stadistic

If a student randomly guesses at 15 multiple-choice questions, find the probability that the student gets exactly seven correct. Each question has four possible choices
7. ### pro

A student has taken an exam consisting 10 multiple choice questions. Each question has 4 answer choices and has one correct answer. Questions are independent of each other. If the student answer questions randomly, what is the probability …
8. ### Statistics

An unprepared student is about to take his first test of the semester. He is told that his test will be composed of 20 multiple choice questions, each with 4 possible answers, only one of which is correct. a.What is the probability …
9. ### Statistics Algebra 2

A 10-question multiple choice test has 4 possible answers for each question. A student guesses on all ten answer. a)What is the probability that the student selects at least 6 correct answers?
10. ### statistics

Suppose a multiple choice test has 20 questions with each question having 4 choices, only one of which is correct that is %25. suppose an unprepared student writes the answers, each time randomly picking on the 4 choices. what is the …

More Similar Questions