During a snowstorm, 4 -1/2 inches of snow fell in 1 -1/3 hours. the same amount of snow fell each hour. how many inches of snow fell in 1 hour? express your answer in simplest form.

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%