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Problems should be in order just as they are. (1,3,5,7, etc.) Attached are correct answers to all the questions. You only have to show the work of how to get to the answers.
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Here is the handwritten and scanned solution. All the answers are correct, with explanations for the solutions.I also included the Word file that I scanned.I shall mark the work as complete, but as always, I shall make any changes that you ask for.I am glad to work for you. You are a nice person to work for.
Chapter 2 Homework Problems
1. Place the following set of n = 20 scores in a frequency distribution table.
6
2
2
1
3
2
4
7
1
2
5
3
1
6
2
6
3
3
7
2
3. Find each value requested for the distribution of scores in the following table.
1
5. For the following scores, the smallest value is X = 17 and the largest value is X = 52. Place
the scores in a grouped frequency distribution table
a) using an interval width of 5 points.
b) using an interval width of 10 points.
44
19
23
17
25
47
32
26
25
30
18
24
49
51
24
19
43
27
34
18
52
18
36
25
2
7. For each of the following samples, determine the interval width that is most appropriate
for a grouped frequency distribution and identify the approximate number of intervals
needed to cover the range of scores.
a. Sample scores range from X = 8 to X = 41.
b. Sample scores range from X = 16 to X = 33.
c. Sample scores range from X = 26 to X = 98.
3
9. Describe the difference in appearance between a bar graph and a histogram and identify
the circumstances in which each type of graph is used.
11. Sketch a histogram and a polygon showing the distribution of scores presented in the
following table:
4
13. A survey given to a sample of college students contained questions about the following
variables. For each variable, identify the kind of graph that should be used to display the
distribution of scores (histogram, polygon, or ...