The mean per capita consumption of milk per year is 133 liters with a variance of 576. If a sample of 195 people is randomly selected, what is the probability that the sample mean would differ from the true mean by less than 3.623.62 liters

You coordinate volunteers for litter cleanup in local parks. your spreadsheet lists drivers and the number of seat belts in each driver’s car. the spreadsheet calculates the number of drivers (d) and the total number of seat belts (s). you want to know the maximum number of volunteers, besides drivers, that can be transported to the park in a single trip given that each person must have a seat belt of their own.