A Telecommunication company had a survey about the age of its customers who have visited one of its branches during regular workdays. Customers' ages were as follows: 36, 64, 44, 26, 53, 63, 68, 58, 68, 48, 72, 52 a) Compute five number summary for the customer age attribute. (suggested time 5 minutes) b) Draw a histogram for customer age in the store (bin width=10). (suggested time 4 minutes) c) What can you deduce from the results of the histogram? (suggested time 1 minute)