The number of dvds in a random person’s home collection is counted for a sample population of 80 people. the mean of the sample is 52 movies; the entire population is known to have a standard deviation of 12 movies. assuming a 99% confidence level, find the margin of error.

What is a graph with a never ending line called?

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.

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?