# Stats

posted by .

A test has 15 true or false questions and 10 multiple choice questions (each with 4 choices). All questions are weighted equally. Jack has not studied at all for the test and randomly guesses.

1. What is the probability that Jack gets 96% on the test?

a. 0.000000001
b. 0.000000002
c. 0.0000007
d. 0.000000004

A

2. Assuming that jack takes the same test 20 different times and the tests determine his final mark (weighted evenly); what is the probability that he will pass the course?
a. 0.8186
b. 0.2567
c. 0.7433
d. 0.1814

D

But Why?

## Similar Questions

1. ### math

Part A of your history test has 15 multiple choice questions. Each question has four choices. Part B has 10 true/false questions. How many ways are there to answer the 15 multiple choice questions?
2. ### 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 …
3. ### math-Probablity

A student is writing a multiple choice test consisting of 40 questions, each of which provides four possible choices. He is certain that he has 16 questions correct. If he guesses for all of the remaining 24 questions, what is the …
4. ### Algebra

A test consist of 15 multiple choice questions, 12 true-false questions and 10 fill in the bland questions. you got 8 questions wrong. what percent of the answers were correct?
5. ### statistics

A multiple choice test has 3 questions and each question has 3 choices. If Nacho takes this test, what is the probability that he will: (a)answer all questions correctly?
6. ### statistics

a test consists of 10 true or false questions followed by 10 multiple choice questions, each with 5 choices. How many ways can Faith mark her answer to this test?
7. ### Statistics

Suppose a multiple-choice test has 10 questions each with 5 choices. If a student guesses randomly. What is the probability that they get an B or better. ( they get at least a 80% on the exam) make sure to declare a binomial random …
8. ### math

A physics test has twenty questions worth 100 points. The test consists of true /false questions worth 3 points each and multiple choice questions worth 11 points each. How many multiple choice questions are on the test ?