The manager of a shopping mall distributed a customer-satisfaction survey by handing it to people as they came through one of the doors to the mall one day. of those handed out, 215 were completed and returned. should the results of the survey be generalized to the population of all customers of the shopping mall?

yes, because the sample size is large.

a

yes, because only people entering the mall were given the survey.

b

yes, because the sample was representative.

c

no, because a random sample from all customers of the shopping mall was not selected.

d

no, because not all customers were selected.

e