Assignment 1 - MATH 1131 3.00 A S1 Assignment 1 Question 1:...

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MATH 1131 3.00 A S1 Assignment 1 Question 1: Water quality ratings, which range from A+ to F- and which reflect the risk of getting sick from swimming at any particular one of 36 Southern California beaches, are given in the following list: A+ A+ A+ F A+ A+ A B A C C A- A F B A+ C A D F A+ D A+ A D A A D A+ A+ A A C F- B A+ (a) Summarize the given ratings by constructing a relative frequency dis- tribution and a bar chart. (b) Assuming that an A means little risk of getting sick, does it appear that the majority of beaches in Southern California are safe? On what information do you base your answer? (c) Would it be appropriate to construct a dotplot for these data? Why or why not? Question 2: The time (in months) to the first electrical malfunction of a pacemaker was recorded for a sample of 89 heart patients: 24 20 16 32 14 22 2 12 24 6 10 20 8 16 12 24 14 20 18 14 16 18 20 22 24 26 28 18 14 10 12 24 6 12 18 16 34 18 20 22 24 26 18 2 18 12 12 8 24 10 14 16 22 24 22 20 24 28 20 22 26 20
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Assignment 1 - MATH 1131 3.00 A S1 Assignment 1 Question 1:...

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