Problem 1 The final exam of a discrete mathematics course consists of 50 true/false questions, eachworth two points, and 25 multiple-choice questions, each worth four points. The probability that Lindaanswers a true/false question correctly is 0.9, and the probability that she answers a multiple-choicequestion correctly is 0.8. What is her expected score on the final?

Answered: Image /qna-images/answer/90086bfe-dc5c-4d9f-9f0f-6e5f408874a7.jpg

Answered: Problem 1 The final exam of a discrete…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Solve the following problem. A quiz has 10 multiple choice questions with four choices with one correct answer each. If you just randomly guess on each of the 10 questions, what is the probability that you get exactly 4 questions correct? Round to 3 decimal places.
Please help me
Problem #5 - Smoking Researchers asked 5,375 high school students about their own smoking and that of their parents. The data are summarized in the two-way table below: Student Smoking Student Does Not Smoke Student Smokes Parents' Smoking Parents Do Not Smoke 1168 188 Parents Smoke 3203 816 A. B. If you are randomly selecting from the students whose parents do not smoke, what is the probability you choose a student who does not smoke? What is the probability that when randomly selecting from all students in the sample you choose a student who does not smoke? C. If you are randomly selecting from the students who do not smoke, what is the probability you choose a student whose parents do not smoke? D. Based on your previous answers, are the events "Student Does Not Smoke" and "Parent Do Not Smoke" statistically independent for this data? EXPLAIN.
Show your solutions. Performance Task. Answer the following problems. 1. Of 240 students, 176 are on the honor roll, 48 are members of the varsity team, and 36 are in the honor roll and are also members of the varsity team. What is the probability that a randomly selected student is on the honor roll or is a member of the varsity team?
Problem 16. You are taking two classes: a Statistics class (S) and an English class (E). The chance of passing the class (S) is 80% and the chance of passing the class (E) is 70%. The probability to pass both of the classes is 65%. 1. What is the probability to pass at least one of the classes? 2. What is the probability to pass class (S) given that you passed class (E)?
The chances of winning are often written in terms of odds rather than probabilities. The odds of winning is the ratio of the number of successful outcomes to the number of unsuccessful outcomes. The odds of losing is the ratio of the number of unsuccessful outcomes to the number of successful outcomes. For example, if the number of successful outcomes is 2 and the number of unsuccessful outcomes is 3, the odds of winning are 2:3 (read "2 to 3") or 2 A card is picked at random from a standard deck of 52 playing cards. Find the odds that it is a 9. The odds that it is a 9 are (Simplify your answer)
Illustration 66. 50 out of every 1000 cigarettes are rolled up in gold flake and are mixed with the general cigarettes at random. The company offers to trade a new packet of cigarettes for each gold cigarette, a smoker finds in a packet of Brand X. What is the probability that the buyers of Brand, X will find X = 0, 1, 2, 3 and 4 gold cigarettes in a single packet of 10 ? 6.
Problem 4
A particular gambling game pays 4 to 1 and has a 20% chance to win. Someone will bet $10, 125 times, and keep track of the total amount won or lost. Which of the following boxes will produce the right answers? Check ALL answers that apply. a. 1 ticket labeled $10 and 4 tickets labeled -$10 b. 20 tickets labeled $10 and 80 tickets labeled -$10 c. 20 tickets labeled 1 and 80 tickets labeled 0 d. 1 ticket labeled $40 and 4 tickets labeled -$10 e. 20 tickets labeled $40 and 80 tickets labeled -$10 f. 1 ticket labeled 1 and 4 tickets labeled 0
In the sketches below, one is the histogram of the values of tickets in a box, and the other is the probability histogram of the sum of 150 draws with replacement from the box. Which one is the probability histogram? the one on the left the one on the right
Part d please
In gambling, the chances of winning are often written in terms of odds rather than probabilities. The odds of winning is the ratio of the number of successful outcomes to the number of unsuccessful outcomes. The odds of losing is the ratio of the number of unsuccessful outcomes to the number of successful outcomes. For example, if the number of successful outcomes is 2 and the number of unsuccessful outcomes is 3, the odds of winning are 2:3 (read "2 to 3") or 2 2 (Note: If the odds of winning are the probability of success is 3' 5.) 2 3 The odds of an event occurring are 3:1. Find (a) the probability that the event will occur and (b) the probability that the event will not occur.

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