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1. According to a front-page article in The Wall Street Journal, 30% of all students in American universities miss classes due to drinking.8 If 10 students are randomly chosen, what is the probability that at most 3 of them miss classes due to drinking?
2. According to an article in USA Today, 60% of 7- to 12-year-olds who use the Internet do their schoolwork on line.9 If 8 kids within this age group who use the Internet are randomly chosen, what is the probability that 2 of them do their schoolwork on line? What is the probability that no more than 5 of them do their schoolwork on line?
the data below are the temperatures on randomly chosen days during a summer class and the number of absences on those
aj davis is a department store chain which has many credit customers and wants to find out more information about these
information from the department of motor vehicles indicates that the average age of licensed drivers is micro 45.7
1. the estimated proportion of hispanics that are mexican americans is 63 based on a recent study of sample 850
the invoices are numbered from 0001 to 5000a. complete the list of the 10 invoice numbers that will be selected from
probability based on normal distribution.1.determine the area under the standard normal curve that lies to the left of
The Oregon health & science university's news website gives information on a study that found that some commercial cigarette brands contain 10 to 20 times higher percentages of nicotine in the "free-base" form, that is, the form thought to be ..
If many samples of size 1000 persons are chosen, determine the expected value (mean X-bar) or average of average IQ's for these samples?
question1. if there are an odd number of data values in a set the median will be thea. value that appears the greatest
assume that the population standard deviation is 2 the margin of error for a 98 confidence interval is desired to be -
a simple random sample of 25 recent graduates from a particular college gives a sample mean starting salary of 24000
Assume that a study of 500 randomly selected school bus routes showed that 480 arrived on time. Is it "significant" for a school bus to arrive late?
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