(a) The distribution is skewed right, because the highest bars are to the left in this histogram with a tail of smaller bars to the right. The distribution does not appear to contain any outliers, because there are no gaps in the histogram.
(b) Any possible outliers could be due to some holiday or other very busy periods in the supermarket. For example, supermarkets tend to be much busier the day before Christmas or Thanksgiving (due to many people requiring fresh food for the holiday).
Answer
(a) Skewed right, No outliers
(b) Holiday
(c) No, stem and leaf plot conveys more information
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