The Smith family has two computers, each insured for $500 of repair costs. The laptop has a 10% chance of needing a $500 repair, the desktop has a 7% chance of needing a $500 repair. There is a 2% chance that both computers will need a repair. How much should the insurance company charge the Smiths for their insurance in order for the company to have an expected profit

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables