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Demographics and Population Statistics The following table lists the proportion of employed people by each major industry in Japan as of December 2012.
Suppose an employed person in Japan is selected at random.
a. What is the probability that the person works in construction or manufacturing?
b. What is the probability that the person does not work in wholesale or retail trade?
c. What is the probability that the person does not work in education nor medical?
A poll was taken to determine the birthplace of a class of college students. Below is a chart of the results. What is the probability that a female student was born in Orlando?
on tuesday after thanksgiving a market research firm took a simple random sample of 300 city college students. on
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Why don't researchers who want to test hypotheses about the relationships between variables worry a great deal about random sampling?
The proportion p1 of all imported autos sold to 25-40 age group is greater than or equal to the proportion p2 of imported autos sold to over 40 age group?
Is there evidence of a significant difference in the proportion who get their news primarily from newspapers between those 36 to 50 years old and those above 50 years old? (use α = 0.05)
Contamination of various food products is an ongoing problem all over the world. The article "Prevalence and Quantitative Detection of Salmonella in Retail Raw Chicken in Shaanxi, China" (J. of Food Production, 2013) reported the following data on..
two instruments are used to measure the height h of a tower. the error made by the less accurate instrument is normally
How many selections result in all 6 workers coming from the day shift? What is the probability that all 6 selected workers from the day shift?
the mean weight of luggage check by a randomly selected tourist-class passenger flying between two cities on a certain
a researcher believe that college students spend a different amount of time talking on the phone than they do instant
use normal approximation to estimate the probability of getting exactly 48 girls in 100 births. assume that boys and
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