Stats
posted by Lacey
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 questions and correctly answering no more than 8 multiple choice questions and at most 12 True/False questions.

Anonymous
6546
Respond to this Question
Similar Questions

Stats
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 … 
math
A multiplechoice 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 … 
mathProbablity
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 … 
psychology statistics for behavioral sciences
A multiplechoice 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? 
Algebra
A test consist of 15 multiple choice questions, 12 truefalse questions and 10 fill in the bland questions. you got 8 questions wrong. what percent of the answers were correct? 
Statistical concept 689599.7
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 truefalse and the other is multiple choice … 
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 truefalse and the other is multiple choice … 
statistics
A math test consists of 17 multiple choice questions, each with five possible answers (a, b, c, d, e), only one of which is correct. Assume that a student takes the test and randomly answers the questions. What is the probability that … 
stats
1. Suppose that you are taking a quiz of 6 multiple choice questions (the instructor chose the questions randomly), each question having 6 possible responses. You did not study at all for the quiz and will randomly guess the correct … 
Finite
Assume that the test has 5 true/false questions, and 10 multiple choice questions (4 options per questions), each with exactly one correct answer. If a student guesses randomly on each question, what is his expected score?