A) Game of Craps In a game of craps using two dice, a "Don't Pass" bettor wins even money if the shooter rolls a two or three. What is the probability of winning? Enter your answer as a fraction or a decimal rounded to 3 decimal places. P (sum of 2 or 3) =? B) Distribution of CEO Ages The distribution of ages of CEOs is as follows: Age Frequency 21-30 1 31-40 8 41-50 27 51-60 29 61-70 24 71-up 11 If a CEO is selected at random, find the probability that his or her age is among the following. Over 20 and under 61 P (over 20 and under 61) =?

A) Game of Craps In a game of craps using two dice, a "Don't Pass" bettor wins even money if the shooter rolls a two or three. What is the probability of winning? Enter your answer as a fraction or a decimal rounded to 3 decimal places. P (sum of 2 or 3) =? B) Distribution of CEO Ages The distribution of ages of CEOs is as follows: Age Frequency 21-30 1 31-40 8 41-50 27 51-60 29 61-70 24 71-up 11 If a CEO is selected at random, find the probability that his or her age is among the following. Over 20 and under 61 P (over 20 and under 61) =?

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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Practice 4. Speeding tickets and car color The table below shows the number of survey subjects who have received and not received a speeding ticket in the last year, and the color of their car. Red car Not red car Total Speeding ticket 15 45 60 Find the probability that a randomly chosen person: (a) has a red car or got a speeding ticket (b) has a red car or did not get a speeding ticket (c) does not have a red car or got a speeding ticket No speeding ticket 135 470 605 Total 150 515 665
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In a national survey college students were asked, "How often do you wear a seat belt when riding in a car driven by someone else?" The response frequencies appear in the table to the right. Response FrequencyFrequency Never 109 Rarely 306 Sometimes 507 Most of the time 1137 Always 2727 Construct a probability model for seat-belt use by a passenger
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In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Purchased Gum Kept the Money a Students Given Four Quarters Students Given a $1 Bill 34 15 18 35 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters. The probability is (Round to three decimal places as needed.) b. Find the probability of randomly selecting a student who spent the money, given that the student was given a $1 bill. The probability is (Round to three decimal places as needed.) c. What do the preceding results suggest? O A. Astudent given four quarters is more likely to have spent the money than a student given a $1 bill. O B. A student given a $1 bill is more likely to have spent the money than a student given four quarters. OC. A student was more likely to be given four quarters than a…
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Next question Confidence in Maj Corporations A 2012 study asked respondents about their confidence in banks and financial institutions Confidence in as well as their confidence in major corporations. Each question allowed three responses: "a great deal, only some, or hardly any." The table to the right summarizes the responses. Find the probability a respondent has a great deal of confidence in banks and financial institutions given that he or she has hardly any confidence in major corporations. Banks and A Great Only Hardly Some Any Financial Institutions Deal Total A Great Deal Only Some Hardly Any 69 59 16 144 123 465 74 662 23 288 183 494 Total 215 812 273 1300 ..... The probability a respondent has a great deal of confidence in banks and financial institutions given that he or she has hardly any confidence in major corporations is (Round to four decimal places as needed.)
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In a national survey college students were asked, "How often do you wear a seat belt when riding in a car driven by someone else?" The response frequencies appear in the table to the right. Response FrequencyFrequency Never 124 Rarely 305 Sometimes 544 Most of the time 1217 Always 2641 Construct a probability model for seat-belt use by a passenger
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