Problem Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-8, -6),A(−8,−6),A, left parenthesis, minus, 8, comma, minus, 6, right parenthesis, comma B(-3,-6)B(−3,−6)B, left parenthesis, minus, 3, comma, minus, 6, right parenthesis, C(-3, -4)C(−3,−4)C, left parenthesis, minus, 3, comma, minus, 4, right parenthesis, and D(-8, -4)D(−8,−4)D, left parenthesis, minus, 8, comma, minus, 4, right parenthesis.

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.