213. A person pays $25 to randomly select one of 5 envelopes containing a different check amount.Determine the expected value if the check amounts are $0, $20, $30, $35 and $75.a) $135b) $7c) $32d) $13There are 91 total days in the months of April, May and June. If two dates are selected at randomfrom this time period, how many different outcomes are possible if the dates are selected.....14. with replacementb) 8190c) 8281d) 27315. without replacementb) 8190c) 8281d) 273a) 182a) 182A hat contains 5 marbles: 1 red, 1 blue, 1 white, 1 green and 1 purple. Two marbles are to be selected(one at a time) out of the hat WITHOUT replacement.(12 pts)2 16. Determine the number of points in the sample space using the counting principle.0d) 9a) 25b) 2017. Construct a tree diagram and list each of the sample points in the sample space.Determine the probability of selecting each of the following.a) 2/5b) 3/518. exactly 1 green marblea) 2/5b) 3/519. no blue marblesc) 10c) 1c) 1d) 0d) 0

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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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John runs a computer software store. Yesterday he counted 137 people who walked by his store, 68of whom came into the store. Of the 68, only 45 bought something in the store.a). Estimate the probability that a person who walks by the store will enter the store.b). Estimate the probability that a person who walks into the store will buy something.
According to flight stats.com American Airlines flights from Dallas to Chicago are on Time 80% of the time. Suppose 20 flights are randomly selected and the number of on-time place is recorded A) find and interpret the probability that EXACTLY 14 flights are on time B) find and interpret the probability that FEWER THAN 14 flights are on time C) find and interpret the probability that AT LEAST 14 flights are on time D) find and interpret the probability that between 12 and 14 flights, inclusive, are on time
In the first trial, line 1, one of the first 10 double-digit numbers is between 01 and 08, meaning that 1 of the 10 cartons of eggs contains at least one broken egg. Starting at line 2 and using a new line for each trial, carry out 4 more trials. In what proportion of these 5 trials is there no carton with broken eggs? A) 0 B) 0.2 C) 0.4 D) 0.6
Please solve and provide all the workings: Sixty per cent (60%) of Students of the Reginal College took French. Fifteen (15) were randomly and independently sampled. a) Calculate the probability that at most 2 out of the 15 randomly selected students took French. b) Of the 15 students, how many do you expect to take French.
5. Calculate the probability of picking a card that was a heart or a spade. Comment on your answer.
5)a) Bart tosses 3 coins. The probability of the result not being "3 heads or 3 tails. b) Jessica rolls 3 cubes numbered 1 through 6. The probability of not rolling either "3 ones" or "3 sixes". Solve both early and correctly
87. A committee of 5 persons is to be selected from a group of 5 men and 10 women. Find the probability that the committee consists of 2 men and 3 women.
Tito purchased one raffle ticket as part of a Meals on Wheels fundraiser. The grand prize-winning ticket will be randomly drawn from 60 tickets sold. a) Determine the probability that Tito wins the grand prize. b) Determine the probability that Tito does not win the grand prize. c) Determine the odds against Tito winning the grand prize. d) Determine the odds in favor of Tito winning the grand prize. a) The probability that Tito wins the grand prize is (Type an integer or a simplified fraction.) b) The probability that Tito does not win the grand prize is (Type an integer or a simplified fraction.) c) The odds against Tito winning the grand prize are (Type whole numbers. Simplify your answers.) d) The odds in favor of Tito winning the grand prize are (Type whole numbers. Simplify your answers.)
A local county has an unemployment rate of 6%. A random sample of 16 employable people are picked at random from the county and are asked if they are employed. Round answers to 4 decimal places. a) Find the probability that exactly 4 in the sample are unemployed. b) Find the probability that there are fewer than 3 in the sample are unemployed. c) Find the probability that there are more than 2 in the sample are unemployed. d) Find the probability that there are at most 3 in the sample are unemployed.
7. Find the probability of getting exactly four heads on seven flips of a fair coin.
A standard deck of cards contains 52 cards. One card is selected from the top. a) Commute the probability of RANDOMLY selecting a six or a ten. b) Commute the probability of RANDOMLY selecting a six, ten or king. c) Commute the probability of RANDOMLY selecting a three or a spade.
An experiment is pulling a ball from an urn that contains 12 blue balls and 10 red balls.

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13. A person pays $25 to randomly select one of 5 envelopes containing a different check amount. Determine the expected value if the check amounts are $0, $20, $30, $35 and $75. a) $135 (b) $7 c) $32 d) $13 selected at random