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The salaries of everybody employed at a large university will be skewed to the right because while the majority of the people would have an average salary, there might be some outliers who would have higher salaries.

The grades on an easy test will have a leftward skewed distribution because most of them would perform well on the test, but there might be only a few who would not score well.

The grades on a difficult test will be skewed to the right because, as it is a difficult test, only a few would do well while the majority would have performed poorly.

The number of time students in your class studied last week would be skewed to the right because the majority of students would study moderately, whilst there would be some that would dedicate extra time to study

The ages of automobiles on a used-car lot would be skewed to the left because there would mostly be a wide range of new vehicles, with only a few that have been used for a very long time.

The amount of time spent on a difficult examination is skewed to the left because most of the students would take the whole 50 minutes time to complete the test; some of them might be able to do it in less time.