1) Bernard has already taken 13 quizzes during past quarters, and he expects to have 7 quizzes during each week of this quarter. How many weeks of school will Bernard have to
attend this quarter before he will have taken a total of 41 quizzes?

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%