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# pm1 - Statistics 103 Spring 2008 Practice Midterm 1 The...

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Statistics 103 Spring 2008 Practice Midterm 1 The midterm is on Monday Apr 28, 3:10-4pm. You can bring 1 page of hand- written notes. Please bring calculators, pens/pencils and bluebook(available at bookstore). Please write your name, student ID and section no. You will be provided with photocopies of required tables from the textbook. The actual exam will have 4 questions similar to those on this practice exam. PROBLEM1 Suppose a researcher randomly selects 18 potatoes for analysis. The researcher records the amount of sugar (in milligrams) in each potato. The data appear below: 5 18 20 22 29 30 35 35 40 50 57 60 65 75 79 95 120 150 (a) Construct a relative frequency table Interval Frequency Relative Frequency 0 x < 40 40 x < 80 80 x < 120 120 x < 160 (b) Construct a frequency histogram (c) Describe the histogram (symmetric, skewed?) (d) Find the mean and the median PROBLEM 2 Suppose 10 patients are in the hospital seeking treatment for the common cold.

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pm1 - Statistics 103 Spring 2008 Practice Midterm 1 The...

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