Large oranges have a mean weight of about 200 g with a standard deviation of about 20 g and an approximate normal distribution. Each bag has 16 oranges. What is the distribution of the average weight of individual oranges?
a) N(mean = 200, std dev = 20)
b) N(mean = 200, std dev = 5)
c) N(mean = 200, std dev = 1.25)
d) N(mean = 200, std dev = 80)