It is estimated 28% of all adults in United States invest in stocks and that 85% of U.S. adults have investments in fixed income instruments (savings accounts,bonds, etc.). It is also estimated that 24% of U.S. adults have investments in both stocks and fixed income instruments.(a) What is the probability that a randomly chosen U.S. adult invests in stocks, given that heor she invests in fixed income instruments? Round your answer to the nearesthundredth.(b) What is the probability that a randomly chosen stock investor also invests in fixedincome instruments? Round your answer to the nearest hundredth.X

Answer:- Let , S = invest in stocks, F = invest in fixed income instruments. According to the…

Answered: It is estimated 28% of all adults in…

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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The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2004 is obtained what is the probability that... (a) at least 17O homes are going to be used as investment property? Round to thousandths place. (b) at most 175 homes are going to be used as investment property? Round to thousandths place.
Historical data show that 8% of donors who book an appointment to donate blood in a clinic in Ottawa cancel their appointments and 3% do not show up (without cancelling their appointments). a. What is the probability that a person who has booked a donation appointment will not attend for donation?Note: not attending can be due to either cancelling or not showing up without cancellation. b. 20 people have already booked appointments for donation for next Monday’s clinic. What is the probability that 5 of them will not attend for donation? c. 60 people have already made appointments for next Saturday. What is the probability that 8 of them will not attend for a donation? Hint: Use Poisson approximation to Binomial.
Approximately 75% of all marketing personnel are extroverts, whereas about 60% of all computer programmers are introverts. a. At a meeting of 10 marketing personnel,i. If ? is the number of marketing personnel that are extrovert, write the formula for the probability ?(?).ii. What is the probability that 3 or more are extroverts?iii. Find the expected value of marketing personnel that are extroverts.
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Big Babies: A public health organization reports that 21% of baby boys 6 - 8 months old in the United States weigh more than 20 pounds. A sample of 14 babies is studied. Part 1 of 2 (a) What is the mean number who weigh more than 20 pounds in a sample of 14 babies aged 6 - 8 months? Round the answer to two decimal places. The mean number who weigh more than 20 pounds is Part 2 of 2 X (b) What is the standard deviation of the number who weigh more than 20 pounds in a sample of 14 babies aged 6-8 months? Round the answer to four decimal places. The standard deviation of the number who weigh more than 20 pounds is Continue 3 X S Save For Later Españo i 13: ola Submit Assignment
High blood pressure: A national survey reported that 34% of adults in a certain country have hypertension (high blood pressure). A sample of 24 adults is studied. Round the answer to at least four decimal places.
In a certain year, the probability that a person in the United States would declare personal bankruptcy was 0.007. The probability that a person in the United States would declare personal bankruptcy and had recently experienced a "big three" event (loss of job, medical problem, or divorce or separation) was 0.004. What was the probability that a person had recently experienced one of the "big three" events, given that she had declared personal bankruptcy? (Round your answer to four decimal places.) Submit Answer
A Yale Daily found that 49 percent of students identified themselves as liberal, 15 percent as conservative, and 36 percent as moderate. In addition, 2% of Yale Students are enrolled at the School of the Environment. Does this mean that that .15*.02=.003 or 0.3% of Yale students are Conservative Environmentalists? Explain using probability terms.
Survey data indicate that 61% of customers at MegaHit video rental stores subscribe to premium movie channels through their cable television provider. The data also indicate that 42% of MegaHit customers own a DVD player, while 68% of MegaHit customers subscribe to premium movie channels or own a DVD player (or both). What is the probability that a randomly selected MegaHit customer both owns a DVD player and subscribes to premium movie channels? Write your answer as a decimal (not as a percentage). (If necessary, consult a list of formulas.) ?

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