OPENINTRO:STATISTICS
4th Edition
ISBN: 9781943450077
Author: OPENINTRO
Publisher: amazon.com
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Chapter 2.2, Problem 24GP
a.
To determine
Explain what 0.122 at the intersection of joint and own represent in Figure 2.20.
b.
To determine
Explain what 0.135 represents in Figure 2.21.
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For unemployed persons in the United States, the average number of months ofunemployment at the end of December 2009 was approximately seven months(Bureau of Labor Statistics, January 2010). Suppose the following data are for aparticular region in upstate New York. The values in the first column show thenumber of months unemployed and the values in the second column show thecorresponding number of unemployed persons.MonthsUnemployedNumberUnemployed1 10292 16863 22694 26755 34876 46527 41458 35879 2325
10 1120Let x be a random variable indicating the number of months a person is unemployed.a. Use the data to develop an empirical discrete probability distribution for x.b. Show that your probability distribution satisfies the conditions for a validdiscrete probability distribution.c. What is the probability that a person is unemployed for two months or less?Unemployed for more than two months?d. What is the probability that a person is unemployed for more than sixmonths?
Chapter 2 Solutions
OPENINTRO:STATISTICS
Ch. 2.1 - Prob. 2GPCh. 2.1 - Prob. 3GPCh. 2.1 - Prob. 4GPCh. 2.1 - Prob. 5GPCh. 2.1 - Prob. 9GPCh. 2.1 - Prob. 10GPCh. 2.1 - Prob. 12GPCh. 2.1 - Prob. 13GPCh. 2.1 - Prob. 15GPCh. 2.1 - Prob. 16GP
Ch. 2.1 - Prob. 17GPCh. 2.1 - Prob. 19GPCh. 2.1 - Prob. 22GPCh. 2.1 - Prob. 1ECh. 2.1 - Prob. 2ECh. 2.1 - Prob. 3ECh. 2.1 - Prob. 4ECh. 2.1 - Prob. 5ECh. 2.1 - Prob. 6ECh. 2.1 - Prob. 7ECh. 2.1 - Prob. 8ECh. 2.1 - Prob. 9ECh. 2.1 - Prob. 10ECh. 2.1 - Prob. 11ECh. 2.1 - Prob. 12ECh. 2.1 - Prob. 13ECh. 2.1 - Prob. 14ECh. 2.1 - Prob. 15ECh. 2.1 - Prob. 16ECh. 2.1 - Prob. 17ECh. 2.1 - Prob. 18ECh. 2.1 - Prob. 19ECh. 2.1 - Prob. 20ECh. 2.2 - Prob. 23GPCh. 2.2 - Prob. 24GPCh. 2.2 - Prob. 28GPCh. 2.2 - Prob. 29GPCh. 2.2 - Prob. 21ECh. 2.2 - Prob. 22ECh. 2.2 - Prob. 23ECh. 2.2 - Prob. 24ECh. 2.3 - Prob. 31GPCh. 2.3 - Prob. 32GPCh. 2.3 - Prob. 34GPCh. 2.3 - Prob. 25ECh. 2.3 - Prob. 26ECh. 2 - Prob. 27CECh. 2 - Prob. 28CECh. 2 - Prob. 29CECh. 2 - Prob. 30CECh. 2 - Prob. 31CECh. 2 - Prob. 32CECh. 2 - Prob. 33CECh. 2 - Prob. 34CE
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- A real estate major collected information on some recent local home sales. The first 6 lines of the database appear in the accompanying table. The columns correspond to the house identification number, the community name, the zip code, the number of acres of the property, the year the house was built, the market value, and the size of the living area (in square feet). Do the data appear to have come from a designed survey or experiment? What concerns might you have about drawing conclusions from this data set? E Click the icon to view the data table. Do the data appear to have come from a designed survey or experiment? O A. It is not clear if the data were obtained from an experiment. They are certainly not from a survey. O B. It is not clear if the data were obtained from a survey. They are certainly not from an experiment. O C. It is not clear if the data were obtained from a survey or an experiment. O D. The data were certainly not obtained from survey or an experiment. What…arrow_forwardA researcher randomly selected 158 personal vehicles and noted the type of vehicle and its color. The two-way table displays the data. A 5-column table with 4 rows. Column 1 has entries sedan, S U V, convertible, total. Column 2 is labeled Red with entries 14, 9, 20, 43. Column 3 is labeled Blue/Green with entries 31, 19, 6, 56. Column 4 is labeled Black/Gray with entries 22, 34, 3, 59. Column 5 is labeled Total with entries 67, 62, 29, 158. The columns are titled Vehicle color and the rows are titled vehicle type. Suppose a vehicle is randomly selected. Let event C = convertible and R = red. What is the value of P(R|C)? StartFraction 29 Over 158 EndFraction StartFraction 43 Over 158 EndFraction StartFraction 20 Over 43 EndFraction StartFraction 20 Over 29 EndFractionarrow_forwardIs this table rightarrow_forward
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