ch02 e SOLUTION - 8.doc - Chapter 2 Charts and Graphs 1...

This preview shows page 1 - 3 out of 9 pages.

Chapter 2: Charts and Graphs 1 Chapter 2 Charts and Graphs Ans = 2. 1,2,3,4,5,6,7,8,9,14,15,16,17,18,19,22,25,26,27,28,29,30,31,32,33,34,35,36,37,38,40,41 2.1 a) One possible 5 class frequency distribution: Class Interval Frequency 10 - under 25 9 25 - under 40 13 40 - under 55 11 55 - under 70 9 70 - under 85 8 50 b) One possible 10 class frequency distribution: Class Interval Frequency 10 - under 18 7 18 - under 26 3 26 - under 34 5 34 - under 42 9 42 - under 50 7 50 - under 58 3 58 - under 66 6 66 - under 74 4 74 - under 82 4 82 - under 90 2 c) The ten class frequency distribution gives a more detailed breakdown of temperatures, pointing out the smaller frequencies for the higher temperature intervals. The five class distribution collapses the intervals into broader classes making it appear that there are nearly equal frequencies in each class. 2.2 One possible frequency distribution is the one below with 11 classes and class intervals of 2. Class Interval Frequency 39 - under 41 2 41 - under 43 1 43 - under 45 5 45 - under 47 10 47 - under 49 18 49 - under 51 13 51 - under 53 15 53 - under 55 15 55 - under 57 7 57 - under 59 9 59 - under 61 2 The distribution reveals that only 13 of the 100 boxes of raisins contain 50 ± 1 raisin (49 -under 51). However, 71 of the 100 boxes of raisins contain between 45 and 55 raisins. It shows that there are a few boxes (5) that have 9 or more extra raisins (59-61) and two boxes that have 9-11 less raisins (39- 41) than the boxes are supposed to contain.
Image of page 1

Subscribe to view the full document.

Chapter 2: Charts and Graphs 2 2.3 Class Class Relative Cumulative Interval Frequency Midpoint Frequency Frequency 0 - 5 6 2.5 6/86 = .0698 6 5 - 10 8 7.5 .0930 14 10 - 15 17 12.5 .1977 31 15 - 20 23 17.5
Image of page 2
Image of page 3
You've reached the end of this preview.
  • Summer '18
  • Keyur Popat
  • Harshad number, Prime number, class frequency distribution

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern