According to a college survey, 22% of all students work full time. find the standard deviation for the random variable x, the number of students who work full time in samples of size 16. round your answer to two decimal places.
a. 4.26
b. 0.22
c. 2.75
d. 3.52
e. 4.00

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?