6. Assume that the weight of an of orange has an average of 200 grams with a standard deviation of 50 grams. The weight follows a normal distribution. a) The smallest oranges, i.e. those that weigh the least, are classified as small. If 10% of the oranges are classified as small, what is the maximum weight for a small orange? b) Suppose you buy 5 randomly selected oranges. Find the probability that at least one orange is small. Assume that oranges cost 2.50 6 per kg. c) How many oranges can you buy at most if you want a 99.5% probability that 10.00 E will be enough