If the school's cafeteria's milk order is based on the equation m = 1/3 * s + 25 where m is the cartons of milk and s is the number of students, how many cartons should they order if there are 399 students buying lunch today ?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample