e 84. (a) The probability that a certain event happened was10tirti A, who is accurate in 49 cases out of 50, said that it happened. Bwith A in stating that the event happened. B is accurate in 9 cases out of toWhat is the probability that it actually did occur ?(b) Suppose if C, who is accurate in 7 cases out of 10, denies that the evementioned above happened, what is the probability that it happened ?

Answered: Image /qna-images/answer/53c69547-098f-4b24-9300-010375694219.jpg

Answered: e 84. (a) The probability that a…

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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Given that event E has a probability of 0.67, the probability of the complement of event E _____. a. cannot be determined with the above information b. must be 0.33 c. is 0.67 d. can have any value between 0 and 1
2. How do you think we could calculate the exactprobability that some pair out of 5 people has the same birthday? [Hint: This is equal to one minus the probability that no pair has the same birthday, i.e. that every birthday is different.]. Write down the way you would calculate this.
3. Suppose the probability that any given person will believe a talc about the transgressions of a famous actrcss is 0.8. What is the probability that (a) the sixth person to hear this tale is the fourth one to bclieve it? (b) the third person to hear this tale is the first onc to bclicve it?
I need the answer as soon as possible
18 that of a 37 In a popular casino game, you can bet one whether a ball will fall in an arc on a wheel colored red, black, or green. Say the probability of a red outcome is 18 and that of a green outcome is 37' Suppose someone makes a $10 bet on black. Find the expected net winnings for this single bet. Interpret the 37 black outcome is result. Choose the correct answer below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) dollars per bet. O A. If the $10 bet on black was placed a very large number of times, the average winnings would be O B. On average, a person is expected to win dollars for any bet on the roulette wheel. dollars. O C. If the $10 bet on black was placed a very large number of times, the bettor would win a total of O D. A person will win dollars every time a $10 bet was placed on black.
Please help me with this discrete II problem. Thank you
6. Someone plans to travel at the weekend. According to the weather forecast, the probability of raining on the first and the second day of weekends is 0.5 and 0.3 respectively, the probability of raining on both days is 0.2. Try to find: (Let Ai be event of raining on the ith day, i = 1,2, then P (A₁) = 0.5, P (A2) = 0.3, P (A1 A2) = 0.2.) (1) The probability of raining on the first day but not on the second day; (2) The probability of raining on one of the two days; (3) The probability of raining at least on one day.
5. The probability of A is 0.5. The conditional probability that A occurs given that B occurs is 0.25. The conditional probability that B occurs given that A occurs is 0.2. a. What is the probability that B occurs? b. What is the conditional probability that B does not occur given that A does not occur?
1. If a die is rolled, find out the following: (i) The probability of getting an even number (ii) The probability of getting a 4 2. If two dice are rolled, then find out the following: (i) The probability that the sum is equal to 9 (ii) The probability that the sum is equal to 7 If a card is drawn at random from a pack of 52 cards, then find out the following: (1) P(Ace or Red) (ii) P(Non Black or Ace) 3. 4. A Jar contains 3 red, 4 green and 3 blue balls. If two balls are chosen at random from the Jar, Find out the following: (i) The probability that they are red or green. (ii) The probability that they are blue or red. 5. If three coins are tossed, then find out the following- (i) Probability of getting two tails (ii) Probability of getting three heads 6. Of the cars on a used car lot, 70% have CD player (CD) and 30% have air conditioning (AC). 10% of the cars have both. (i) What is the probability that a car has 'No AC', given that it has 'CD'? (ii) What is the probability that a car…
Four cards (without replay) are drawn from a well-mixed deck of cards (with 52 cards).What is the probability of getting (a) exactly two aces(b) at least one ace(c) two aces, conditional on getting exactly 3 hearts THE ANSWER IS IN PICTUER. I understand a and b. But in c I dont understand how it became like that especially there are between steps which are not described..can you explian that.
13.What does "zero probability of an event" means? a. The occurrence of the event is lowly happening. b. The occurrence of the event is not happening c. The occurrence of the event is highly happening. d. The occurrence of the event is certain.

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