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4. A test has 10 true or false questions. When Rachelle takes the test she answers...
please provide the answers clearly 7. Suppose a Truc-False test has 20 questions (a) In how many ways may a student mark the test, if 6 questions are scored correctly and 14 incorrectly? (b) State which theorem from the text is applicable to solving part (a) (c) In how many ways may a student mark the test, if 10 questions are scored correctly and 10 incorrectly? 8. A baseball fan has a pair of tickets to 5 different home games...
in how many different ways can a true-false test consisting of 9 questions be answers?
TO SU Part 1: Probability were cay 1. A question on a multiple-choice test has 10 questions each with 4 possible answers (a,b,c,d). a. What is the probability that you guess all the answers to the 10 questions correctly (carn 100%)? 2. If you ask three strangers about their birthdays, what is the probability a. All were born on Wednesday? b. What is the probability that all three were born in the same month? c. All were born on different...
A student takes a test consisting of 10 multiple choice questions. Each question has four answers, but only one correct answer. (a) What is the probability that the student answers exactly seven questions correctly? (b) What is the probability that the student answers at most two questions correctly?
please solve all questions. emergency please 5. For the two events A and B we have, P(A) 0.3, P(B) 0.4 and P(A and B)-0.12. Find the following a. (2 pts) P(A or B). b. (2 pts) P(A and A'). c. (2 pts) P(AIB). d. (c po) Are A and B indepandent Esplain your reason 6. a. (4 pts) A simple survey consists of three multiple choice questions. The first question has 3 possible answers, the second has 4 possible answers...
A multiple choice test has 10 questions each of which has 4 possible answers, only one of which is correct. If Judy, who forgot to study for the test, guesses on all questions, what is the probability that she will answer exactly 3 questions correctly?
A true/false test has 60 questions. A passing grade is 56% or more correct answers. a. What is the probability that a person will guess correctly on one true/false question? b. What is the probability that a person will guess incorrectly on one question? c. Find the approximate probability that a person who is just guessing will pass the test. d. If a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability...
A student takes a multiple-choice test that has 10 questions. Each question has two choices. The student guesses randomly at each answer. Round the answers to three decimal places. 1. p(2) = 2. p(more than 3)=
A test contains 10 multiple-choice questions. Each question has 4 answers and only 1 answer is correct. Suppose a student just randomly selects an answer for each question. What is the probability that the student will answer 2 or fewer questions correctly?
A form has 7 questions, each with 3 possible answers: YES, NO, MAYBE. How many different ways can the form be filled with the same number of YES's and NO's ? Can you please explain your logic? Thanks.