On any given day 34% of sales at Ruby's jewelry store are from necklaces, while 28% of sales at Nugget Jewels are from necklaces. Suppose Ruby's has 50 customers and Nugget Jewels has 60 customers on a randomly
selected day. Let R = the proportion of sales that are from necklaces at Ruby's and N = the proportion of sales that
are from necklaces at Nugget Jewels. What is the probability that the proportion of sales from necklaces at Ruby's
will be less than the proportion of sales from necklaces at Nugget Jewels?