In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 151 had investments in stock funds. 79 had investments in bond funds. 59 had investments in money market funds. 47 had investments in stock funds and bond funds. 37 had investments in stock funds and money market funds. 35 had investments in bond funds and money market funds. 23 had investments in stock funds, bond funds, and money market funds. (a) What is the probability that an employee of the company chosen at random had investments in exactly two kinds of investment funds? (Enter your answer to three decimal places.) (b) What is the probability that an employee of the company chosen at random had investments in exactly one kind of investment fund? (Enter your answer to two decimal places.) (c) What is the probability that an employee of the company chosen at random had no investment in any of the three types of funds? (Enter your answer to three decimal places.)

In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 151 had investments in stock funds. 79 had investments in bond funds. 59 had investments in money market funds. 47 had investments in stock funds and bond funds. 37 had investments in stock funds and money market funds. 35 had investments in bond funds and money market funds. 23 had investments in stock funds, bond funds, and money market funds. (a) What is the probability that an employee of the company chosen at random had investments in exactly two kinds of investment funds? (Enter your answer to three decimal places.) (b) What is the probability that an employee of the company chosen at random had investments in exactly one kind of investment fund? (Enter your answer to two decimal places.) (c) What is the probability that an employee of the company chosen at random had no investment in any of the three types of funds? (Enter your answer to three decimal places.)

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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Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.A sample of 64 stocks traded on the NYSE that day showed that 24 went up.You are conducting a study to see if the proportion of stocks that went up is significantly more than 0.3. You use a significance level of α=0.01α=0.01.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to…
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The following information is taken from Johnson & Johnson's annual reports. Its common stock is listed on the New York Stock Exchange, using the symbol JNJ. Johnson & Johnson Domestic Sales International Sales Employees Year ($ million) ($ million) (thousands) 2010 $ 29,437 $ 32,124 114.0 2011 12,907 36,107 117.9 2012 29,830 37,394 127.6 2013 31,910 39,402 128.1 2014 34,782 39,548 126.5 2015 35,687 34,387 127.1 2016 37,811 34,079 126.4 2017 39,863 36,587 134.0 2018 41,884 39,697 135.1 Using the period 2010–12 as the base period, compute a simple index of international sales for each year from 2013 to 2018. (Round your answers to 1 decimal place.)The index (2010–2012 = 100) for selected years is:
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The following information is taken from Johnson & Johnson's annual reports. Its common stock is listed on the New York Stock Exchange, using the symbol JNJ. Year 2016 2017 2018 2019 2020 Year 2016 2017 Johnson & Johnson 2018 2019 2020 Domestic Sales International ($ million) Sales (5 million) 34,079 36,587 39,697 37,811 39,863 41,884 39,962 43,133 42,097 39,451 Click here for the Excel Data File Using the period 2016 to 2017 as the base period, compute a simple index of domestic sales for each year from 2018 to 2020. Note: Round your answers to 2 decimal places. The index (2016 to 2017= 100) for selected years is: Simple Index Employees (thousands) 126.4 134.0 135.1 132.2 135.5
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A group of 175 college students who took math last term were interviewed. They were asked whether they passed their math course and whether they live on campus. Their responses are summarized in the following table. Passed math Failed math Live on campus 49 21 Live off campus 28 77 ? |(a) What percentage of the students passed math? 1% |(b) What percentage of the students live on campus? % |(c) What percentage of the students who live on campus passed math? [% |(d) Is there evidence that students who live on campus tend to pass math more often than average? O No, because the percentage found in part (c) is about the same as the percentage found in part (a). O No, because the percentage found in part (c) is about the same as the percentage found in part (b). O Yes, because the percentage found in part (c) is much greater than the percentage found in part (a). O Yes, because the percentage found in part (c) is much greater than the percentage found in part (b).

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151		had investments in stock funds.
79		had investments in bond funds.
59		had investments in money market funds.
47		had investments in stock funds and bond funds.
37		had investments in stock funds and money market funds.
35		had investments in bond funds and money market funds.
23		had investments in stock funds, bond funds, and money market funds.