d How many shotokan karate students do we expect to be in that first demonstration 113 In one of its spring catalogs a retailer advertised footwear on 29 of its 192 catalog pages Suppose we randomly survey 20 pages We are interested in the number of pages that advertise footwear Each page may be picked at most once a In words define the random variable X b List the values that X may take on c Give the distribution of X X d How many pages do you expect to advertise footwear on them e Calculate the standard deviation