HW Week 2.docx

# HW Week 2.docx - UMUC STAT-200 Homework Assignments Dr...

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UMUC STAT-200 Homework Assignments Week #2 Dr. Brian Killough Textbook #1: Lane et al . Introduction to Statistics, David M. Lane et al., 2013. ( ) Textbook #2: Illowsky et al . Introductory Statistics, Barbara Illowsky et al., 2013. ( ) Lane - Chapter 2: 7,9 and Chapter 3: 6,8,30,31 7. For the data from the 1977 Stat. and Biom. 200 class for eye color, construct: a. pie graph 44% 41% 16% 0% Eye Color BROWN BLUE GREEN GRAY b. horizontal bar graph BROWN BLUE GRAY GREEN 0% 10% 20% 30% 40% 50% 42% 39% 0% 15% Column2 c. vertical bar graph BROWN BLUE GREEN GRAY 0% 10% 20% 30% 40% 50% Column2

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d. a frequency table with the relative frequency of each eye color Total=26 Eye Color Number of Students Relative Frequency Cumulative Frequency Brown 11 0.423 0.423 Blue 10 0.385 0.808 Green 4 0.154 0.962 Gray 1 0.038 1 9. Which of the box plots on the graph has a large positive skew? Which has a large negative skew? Box B has a large positive skew Box C has a large negative skew 6. You recorded the time in seconds it took for 8 participants to solve a puzzle. These times appear in the table on the right. However, when the data was entered into the statistical program, the score that was
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