13) The table below describes the smoking habits of a group of asthma sufferers. Light Heavy Nonsmoker smoker smoker Total 39 Men 352 37 428 Women 321 42 45 408 Total 673 81 82 836 If two different people are randomly selected from the 836 subjects find the probability that they are bour h smokers. Round to six decimal places.

Using the Two-Way Table provided below answer the following question:     Men Women Boys Girls TOTAL Survived   332 318 29 27 706 Died   1360 104 35 18 1517 TOTAL             Question 9   What is the probability of randomly selecting back to back people and they are a Male Who Survived and a Girl who died?

The following table relates the weights and heights of a group of individuals participating in an observational study.  Hint:  Fill out the table first.   Find the probability that a randomly chosen individual from this group is Tall.  Round your answer to four decimal places.

The following chart refers to a sample of 3203 people who were asked if they do charity work.    Frequently Occasionally Not at All Males 221 456 795 Females 207 430 1378 Find the probability of selecting a female, or an individual who is not involved in charity work at all.  Group of answer choices A. 0.762 B. 0.922 C. 0.328 D. 0.192

A test was given to a group of students. The grades and gender are summarized below A B Male 2 13 Female 6 14 C Total 3 18 18 38 Total 8 27 21 56 If one student is chosen at random from those who took the test, Find the probability that the student got a 'B' GIVEN they are male. Question Help: Video Calculator Submit Question HI HE Q Search a *

At a large factory, the employee were surveyed and classified according to their level of education and whether they smoked. The data are shown in the table. Not high school graduate Smoking habit High school graduate College graduate Total Smoke 6 14 19 39 Do not smoke 18 7 25 50 Total 24 21 44 89 If an employee is randomly selected. Find the probability that the employee does not smoke or he or she graduate from college. Select one: O a. 0.5617 O b. 0.4943 c. 0.2808 O d. 0.7752

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2. According to data from Statistics Canada, Chinese is the mother tongue of 8.1% of Toronto residents. a. If 3 Toronto residents are randomly selected, find the probability that they all have Chinese as their mother tongue. b. If 3 Toronto residents are randomly selected, find the probability that at least one of them has Chinese as their mother tongue. 1 Page 236, #1, Pearson Custom Mathematics for Canada: St. Clair College Introduction to Statistics Page 2 of 5 ΜΤH 237 Exam Review W21 M. Ripley c. If groups of 100 Toronto residents are randomly selected, what is the mean number of residents whose mother tongue is Chinese? d. If groups of 100 Toronto residents are randomly selected, what is the standard deviation for the number of residents whose mother tongue is Chinese? e. Would it be unusual to get 10 people whose mother tongue is Chinese in a randomly selected group of 100 Toronto residents? Why or why not??

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The number of cancer cases by smoking status is shown in below table is a sample of randomly selected individuals. These figures will give an odds ratio of: Smoking status Smoker Non-smoker Lung cancer With cancer Without cancer 40 25 20 20 50