Three family members clean the bathrooms, wash the dishes, and do the laundry. If the 3 family members split up the time equally, how much time does each person spend doing
chores?

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%