10. In a survey of computer owners, 80% use an anti-virus program, 25% use an anti-spyware programs, and 15% use both.
What is P(anti-virus | anti-spyware)?
What is Planti-spyware | anti-virus)?
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Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?