the number of lattes sold daily by two coffee shops is shown in the table.
shop a shop b
55 45
52 42
56 57
48 48
57 11
30 10
45 46
41 43
based on these data, is it better to describe the centers of distribution in terms of the mean or the median? explain.

1) mean for both coffee shops because the data distribution is symmetric
2) median for both coffee shops because the data distribution is not symmetric
3) mean for shop b because the data distribution is symmetric; median for shop a because the data distribution is not symmetric
4) mean for shop a because the data distribution is symmetric; median for shop b because the data distribution is not symmetric