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Employment data at a large company reveal that 64?% of the workers are? married, 30?% are college? graduates, and one fifth of the college grads are married.
a) What's the probability that a randomly chosen worker is neither married nor a college? graduate?
?b) What's the probability that a randomly chosen worker is married but not a college? graduate?
?c) What's the probability that a randomly chosen worker is married or a college? graduate?
1. the total cholesterol levels of a sample of men aged 35-44 are normally distributed with a mean of 206 milligrams
A gas company that refills tanks took a random sample of customers on a recent Saturday morning and reported the mean age of the propane tanks to be 3.45 years.
For the survey project draw a comparable diagram. This may take you more than one attempt and you should check your completed diagram carefully.
For the actual percentage defective varying from 6% to 10% and ß varying from 8% to 12%, tabulate the minimum sample size required.
Please explain in your own words the duality principle.
Suppose X is the amount of money a person earns in an hour where? p(X = $5) =0.2, p(X =$10) = 0.1, p(X=$15) =0.5 and p(X=$20) = 0.2. How much money would the person earn on average
Using a significance level equal to 0.01, what conclusion should you reach about the four manufacturers' printer cartridges? Explain.
a horse race has 12 entries. assuming that there are no ties what is the probability that the three horses owned by one
Select a method for graphically representing the provided date Use the method to create a graph analyze the date and provide a narrative description of my analysis.
if z is a standard normal variable what is the probability p-0.73 lt z lt
From her firm’s computer telephone log, an executive found that the mean length of 64 telephone calls during July was 4.48 minutes with a standard deviation of 5.87 minutes.
What sample size is required for a maximum error of estimation of 10 for a population whose standard deviation is 40 using a confidence interval
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