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Unformatted text preview: Statistics 103 Winter 2008 Practice Midterm 1 The midterm is on Monday Jan 4, 3:10-4pm. Students whose last names start with A-H should go to 6 Wellman Hall. Others should go to 100 Hunt Hall. You can bring 1 page of handwritten 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 prac- tice 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 ≤ 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...
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This note was uploaded on 05/18/2008 for the course STATS 103 taught by Professor Sen during the Winter '08 term at UC Davis.
- Winter '08