Which of the following are good questions to ask when trying to understand a problem? Check all that apply.
O A. How should I present the solution?
B. What is a logical name for the variable?
O C. What are the units of the variable?
D. Does my guess satisfy the equation?
0 E. Is the variable always positive, negative, or either?
F. What is the variable?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.