Armando has some coins in his pocket. 3 dimes 2 quarters 2 pennies 5 nickles What is the probability that he will pull out a nickel, then a quarter, then a nickel if he does not put any of the coins back in his pocket after he selects it?

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?