Triangle ABC is graphed on a coordinate grid with vertices at A(3,7), B(3,-2) and C(-1,7). Triangle ABC is dilated by a scale factor of u with the origin as the center of dilation to create triangle A’B’C

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

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.