Assume you are writing a program that calculates a user's total order cost that includes sales tax of 6.5%. list three advantages of using a named constant to represent the sales tax instead of simply entering 0.065 each time the tax is required in the code?

Young owners of a sole proprietorship will likely not find financial support available from?

Describe at least four ways you can take money out of a checking account

Suppose that in a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000. female earnings have a mean of $45,000 with a standard deviation of $18,000. the correlation between male and female earnings for a couple is 0.8. let z be the combined earnings for a randomly selected couple.a.are male-female earnings independent? yes or no? b. what is the mean of z? c.what is the covariance between male and female earnings? d. what is the standard deviation of z? e. convert the answers of a. to c. if earnings were measured in euros.