In a sample of 50 customers one morning, 20 were wearing jeans. If there were 800 customers that afternoon, estimate the number of visitors who were wearing jeans.

To estimate the number of customers wearing jeans in the afternoon, we can assume that the same proportion of customers wear jeans in the afternoon as in the morning.

So, if 20 out of 50 customers were wearing jeans in the morning (20/50 = 0.4, or 40%), we can estimate that approximately 40% of the 800 customers in the afternoon would also be wearing jeans.

40% of 800 customers is 0.4 x 800 = 320 customers wearing jeans in the afternoon.

Therefore, we can estimate that around 320 customers were wearing jeans in the afternoon.