For events A and B, suppose P(A) = 0.7 and P(A and B) = 0.28. Are A and B independent?

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Which statement about the annual percentage rate (apr) is not true?