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Diseases I and II are prevalent among people in a certain population. It is assumed that 10% of the population will contract disease I sometime during their lifetime, 15% will contract disease II eventually, and 3% will contract both diseases.
(a) Find the probability that a randomly chosen person from this population will contract at least one disease.(b) Find the conditional probability that a randomly chosen person from this population will contract both diseases, given that he or she has contracted at least one disease.
The liquid chlorine added to swimming pools to combat algae has a relatively short shelf life before it loses its effectiveness. Records indicate that the mean shelf life of a 5-gallon jug of chlorine is 2,10 hours (90 days).
suppose a bar buys 10 of these sony tvs what is the probability that the average life time of the bar's tv is less than 19,650 hours.
In your organization's management development program, there was a heated discussion between people who claimed that theory is impractical and not effective
Analyze the process of statistical quality control and determine which part of the process would be most difficult and what steps could be taken to mitigate the anticipated difficulty.
Setermine the probability that a specific driver had exactly two violations?
Find the values of the correlation coefficient and the coefficient of determination. Find the slope, y-intercept, and equation of the regression line for the data. Plot the points and a graph of the regression line on the same axes.
If it rains in Greenville on Monday, there is a 80% chance that it will rain in NC that day. What is the probability it will rain in at least one of the above states.
The same city are delivered within two days. Six parcels are randomly sent to different locations. What is the probability that all six arrive within two days?
Explain thoroughly, the concept of standard deviation. How does range affect standard deviation? What is a z-score, and how do z-scores relate to the mean of a set of data?
A large population of overdue bills has balances that follow a normal curve. When we take a sample of 100 of these the average is $500 and the standard deviation is $100. (a) what statement can you make about the range $300 to $700? (b) what state..
Give 99% confidence interval for mean number of years general managers of major-chain hotels have spent with their current company.
If you want to be 95% confident of estimating the population proportion to within a sample error of +and - .05 and there is historical evidence that the population is approximately .35, what sample size is needed.
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