(b) Tiffany obtained data about the gross domestic product (GDP) and the birth ratefor 170 countries. She classified each GDP and each birth rate as either "low","medium" or "high". There were 74 countries that had a medium GDP and 43countries that had a high GDP. Among the countries that have 58 low birth rate,there were 3 countries that have a low GDP and 20 countries that have a mediumGDP, whereas among the countries that have high birth rate, there were 45countries that have a low GDP, 12 countries have a medium GDP and no countryhas a high GDP.i. Construct a contingency table to represent the information above.One of these countries is chosen at random. Find the probability thatThe country chosen has a low GDP or a medium birth rate.ii.iii.The country chosen has a low birth rate, given that it does not have a mediumGDP.iv. States with a reason whether or not the events 'the country chosen has amedium GDP' and 'the country chosen has a medium birth rate' areindependent.

Tiffany obtained data about the gross domestic product (GDP) and the birth rate for 170 countries.…

Answered: i. Construct a contingency table to…

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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d. Find the probability of matching three of the four winning numbers. (ROUND YOUR ANSWER TO 8 DECIMAL PLACES.)
4. A geological study indicates that an exploratory oil well should strike oil with probability of 0.2. What is the probability that A. the first strike comes on the third well drilled? B. the third strike comes on the seventh well drilled? C. What assumptions did you make to obtain the answers to parts A and B? D. Find the mean and variant of the number of wells that must be drilled if the company wants to set up three producing wells.
7. Eighty percent of new car buyers choose automatic transmissions. For a group of 10new car buyers, find the probability thata.exactly 7 choose an automatic transmission.b. at most 6 choose an automatic transmission.C.more than 5 choose an automatic transmission.d. How many buyers do you expect to select automatic transmissions?
v. PRACTICE EXERCISES/ACTIVITIES Problem Solving: Find the probability of the following: 1. Two dice are thrown together. What is the probability that the number obtained on one of the dice is multiple of number obtained on the other dice? 2. A coin is thrown 3 times .what is the probability that atleast one head is obtained? 3. Find the probability of getting a numbered card when a card is drawn from the pack of 52 cards. 4. There are 5 green 7 red balls. Two balls are selected one by one without replacement. Find the probability that first is green and second is red. 5. Two cards are drawn from the pack of 52 cards. Find the probability that both are diamonds or both are kings. Solve this Problem
2. Employees of a company were asked to rate the nation's economy and their political party. TTT Republican Democrat Independent 2. 23 26 18 Excellent Good Not So Good 11 28 3 Poor 9. a. Find the probability an employee said good. b. Find the probability an employee said the Green party. c. Find the probability an employee said Republican and excellent d. Find the probability an employee said Independent or not so good. e. Find the probability an employee said excellent or poor. f. Find the probability a Democrat employee said good.
committee of five to study transportation issues will be randomly selected. a. If one person on the council is chosen at random to draw the names out of a hat, what is the probability that the person drawing the names is a Democrat? b. How many ways can the committee be formed if there are no restrictions on composition? C. How many ways can 3 Republicans be chosen? 23. A city council consists of ten members. Four are Democrats and six are Republicans. A d. How many ways can 2 Democrats be chosen? e. What is the probability that the random selection of the five-person committee will result in 3 Republicans and 2 Democrats?
Please see attachments below. I need the correct answer for (c) and (d).
A club has a membership of 6 freshmen, 2 sophomores, 3 juniors and 4 seniors. A committee of 4 is chosen. Find each as a fraction or a decimal rounded to 2 decimal places. a. What is the probability that the committee consists of all freshmen? b. What is the probability that the committee consists of 2 juniors and 2 seniors? c. What is the probability that the committee consists of all sophomores?
7.) The Pew Internet and American Life Project reported in 2004 that 55% of current music downloaders say they are using paid services. Consider a random sample of 18 music downloaders.a.) Find the probability that the sample contains 15 music downloaders who are usingpaid services using the formula.b.) Find the probability that the sample contains 10 or fewer music downloaders who areusing paid services using the calculator.c.) Find the probability that the sample contains 9 or more music downloaders who areusing paid services using the calculator.d.) Find the probability that the sample contains between 8 and 15, inclusive, musicdownloaders who are using paid services using the calculator.e.) Find the mean number of music downloaders who are using paid services.f.) Find the standard deviation of music downloaders who are using paid services.
13% of all Americans live in poverty. If 39 Americans are randomly selected, find the probability thata. Exactly 5 of them live in poverty. b. At most 4 of them live in poverty. c. At least 3 of them live in poverty. d. Between 3 and 10 (including 3 and 10) of them live in poverty.
6. Purchased gum Kept the money 13 Students give 4 quarters Students given a $bill 29 11 38 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters. b. Find the probability of randomly selecting a student who spent the money, given that the student was given a $1. c. Find the probability of randomly selecting a student who kept the money, given that the student was given a $1.
A financial services committe had 60 members, of which 9 were women. If 7 members are selected at random, find the probability that the group of 7 would be composed as the following. a.6 men and 1 women b.5 men and 2 women c. at least one women

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i. Construct a contingency table to represent the information above. One of these countries is chosen at random. Find the probability that The country chosen has a low GDP or a medium birth rate. ii. The country chosen has a low birth rate, given that it does not have a medium GDP.