74 Identity theft is a growing problem in the UnitedStates. According to a Federal Trade Commission Re-port about 280,000 identity complaints were filed for2011. Among the 43.2 million persons in the 20-29year old age group, 56,689 complaints were filed. The20-29 year old age group makes up proportion .139of the total population. Use the relative frequencies toapproximate the probability, that for the current year,(a) a person in the 20-29 age group files an identitytheft complaint.(b) a person not in the 20–29 age group files an iden-tity theft complaint. Comment on your answers toParts (a) and (b).(c) a random person will file an identity theft com-plaint.(d) If a complaint is filed, what is the probability itwas by someone in the 20–29 age group.

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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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Use the standard normal probability chart, included in this exam, to look up the following numbers and draw the graph for each one. a. - .0492 b. 1.6 c. 1.06 d. -5.2
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35% of all college students major in STEM (Science, Technology, Engineering, and Math). If 36 college students are randomly selected, find the probability that a. Exactly 14 of them major in STEM. b. At most 14 of them major in STEM. c. At least 12 of them major in STEM. d. Between 8 and 14 (including 8 and 14) of them major in STEM.
If the prevalence of a certain condition in the population is 0.1. What is the probability that at least one person out of sample of ten has the condition? Write as a proportion rounded to two places.
please answer the question down below!
According to a magazine, as of January 2018, 8% of chief executive officers were women. Complete parts a through d based on a random sample of 12 CEOs. a. What is the probability that one corporate officer was female? The probability is 0.3837 (Round to four decimal places as needed.) b. What is the probability that fewer than four corporate officers were female? The probability is 0.9880 (Round to four decimal places as needed.) c. What is the probability that more than two corporate officers were female? The probability is (Round to four decimal places as needed.)
The 2015 National Vital Statistics Report provides information on how the nearly four million live births that occurred in 2014 broke down by birth order. Choose at random a baby born in the United States in 2014. Baby's birth order Probability mean = 1 2 0.391 0.319 The few babies who were 9th or more in birth order are included in the "8" birth order group. In 2014, 39.1% of the nearly 4 million live births in the United States were to first-time mothers. 3 5 6 7 4 0.168 0.072 0.028 0.012 0.005 standard deviation = What are the properties of the sampling distribution of the proportion of births to first-time mothers in random samples of 500 births from 2014? (Enter your answer for the mean rounded to three decimal place and your answer for the standard deviation rounded to four decimal places.) 8 0.005
When studying radioactive material, a nuclear engineer found that over 365 days, 1,000,000 radioactive atoms decayed to 979,748 radioactive atoms, so 20,252 atoms decayed during 365 days. a. Find the mean number of radioactive atoms that decayed in a day. b. Find the probability that on a given day, 52 radioactive atoms decayed.
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…
In a sample of college students, 100 live on campus, 60 live with family off campus, and 40 live in an apartment off campus. A.What is the probability a randomly selected student lives off campus? B. Explain why this is an example of empirical probability.
29% of all college students major in STEM (Science, Technology, Engineering, and Math). If 44 college students are randomly selected, find the probability that a. Exactly 10 of them major in STEM. b. At most 14 of them major in STEM. c. At least 12 of them major in STEM. d. Between 7 and 15 (including 7 and 15) of them major in STEM.
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