In a certain presidential election, 38% of voting-age Americans actually voted. In our town of 300,000, 41% of voting-age citizens voted. What are the z-score and standard deviation? (Round the z-score to one decimal place and the standard deviation to four decimal places.)

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?