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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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.
Assume that 15% of people are left-handed. If 7 people are selected at random, find the probability of each outcome described below. a) Find the probability that the first lefty is the sixth person chosen. (Round to four decimal places as needed.) b) Find the probability that there are some lefties among the 7 people. (Round to four decimal places as needed.) c) Find the probability that the first lefty is the third or fourth person. (Round to four decimal places as needed.) d) Find the probability that there are exactly 3 lefties in the group. (Round to four decimal places as needed.) e) Find the probability that there are at least 5 lefties in the group. (Round to four decimal places as needed.) f) Find the probability that there are no more than 2 lefties in the group. (Round to four decimal places as needed.)
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.
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Please answer the question with details on how to do it. Thank you. 4. A single ball is drawn at random from a box containing 12 orange balls, 10 black balls, and 8 blue balls. a.) Determine the probability that it is blue. b.) Three balls are drawn successively. Find the probability that they are drawn in the order orange, black, and blue if the ball is not replaced.
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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