One variable that is measured by online homework systems is the amount of time a student spends

Question:

One variable that is measured by online homework systems is the amount of time a student spends on homework for each section of the text. The following is a summary of the number of minutes a student spends for each section of the text for the fall 2014 semester in a College Algebra class at Joliet Junior College.
Q1 = 42 Q2 = 51.5 Q3 = 72.5
(a) Provide an interpretation of these results.
(b) Determine and interpret the interquartile range.
(c) Suppose a student spent 2 hours doing homework for a section. Is this an outlier?
(d) Do you believe that the of time spent doing homework is skewed or symmetric? Why?
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