# Stat HW for.

1. A student taking a midterm exam in Ancient History comes to two questions pertaining to a lecture that he missed, and so he decides to take a random guess on both questions. One question is true-false and the other is multiple choice with four possible answers. What is the probability of guessing?
a. the correct answer to the true/false question? – 1 out of 2 chances – 0.5 or 50%
b. the correct answer to the multiple choice question?
c. the correct answers to both the true/false question and the multiple choice question?
d. the incorrect answers to both the true/false question and the multiple choice question?
e. the correct answer to the true/false question and an incorrect answer to the multiple choice question?
f. the incorrect answer to the true/false question and the correct answer to the multiple choice question?

How would you solve for these questions.. I feel that got different answers.

Thanks

1. 👍
2. 👎
3. 👁
1. 1b. 1/4 = .25

Probability of both found by multiplying individual probabilities.

E. .5 * (1-.25) = ?

1. 👍
2. 👎

## Similar Questions

1. ### math

A​ student's course grade is based on one midterm that counts as 15​% of his final​ grade, one class project that counts as 15​% of his final​ grade, a set of homework assignments that counts as 40​% of his final​

2. ### Health

Lesson 1: Health, Fitness, and Nutrition A Final Exam Health, Fitness, and Nutrition A Unit 3: Final Exam I need help with the midterm for the class above. It has 52 questions SEND HELP lol

3. ### math

need to make a venn diagram using 3 circles. A survey on subject being taken by 250 students at a certain college revealed the following info: 1. 90 were taking math 2. 145 were taking history 3. 88 were taking english 4. 25 were

4. ### statistics

A​ student's course grade is based on one midterm that counts as 5​% of his final​ grade, one class project that counts as 25​% of his final​ grade, a set of homework assignments that counts as 35​% of his final​

1. ### Statistics

A student is taking a multiple-choice exam with 16 questions. Each question has five alternatives. If the student guesses on 12 of the questions, what is the probability she will guess at least 8 correct? Assume all of the

2. ### math

A student’s final grade in chemistry is determined by the following weights: Quizzes 5% Exam 1 20% Exam 2 20% Lab Reports 15% Research Paper 15% Final Exam 25% The student received the following grades: Lab reports: 75 80 70 75

3. ### Math

An exam consists of six true-or-false questions. Assuming that every question is answered, in how many different ways can a student complete the exam? In how many ways may the exam be completed if a penalty is imposed for each

4. ### STAT

You will need a binomial table for n = 20 for this problem. Suppose that a quiz consists of 20 True-False questions. A student hasn't studied for the exam and will just randomly guesses at all answers (with True and False equally

1. ### math/probability

The following is a table of probabilties calculated from a survey of BHCC students with the question asked "How many classes are you taking this semester?" x: # of classes 1 2 3 4 5 P(x) 0.23 0.27 0.13 0.33 0.04 Using the table,

2. ### mathematics

a student answers 90% of the questions on a math exam correctly.if the answers 27 questions correctly.how many questions are on the exam?

3. ### programming

Write a program that requests the numeric grades on a midterm and a final exam and then uses a Function procedure to assign a semester grade (A, B, C, D, OR F). The final exam should count twice as much as the midterm exam, the

4. ### Graphic Design

Holy cow this test is 50 questions: “Lesson 1 - Midterm Quiz Middle School Digital Art and Design - Unit 5: Midterm”