Charles lost 4 of the 10 dollar bills that his parents gave him for his birthday. What percentage of his dollar bills did he lose?

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%