Question

Consider the following data set: 1 13 11 4 4 7 13 11 13 15 2 11 5 5 3 4 8 6 7 7 5 8 2 8 11 10 6 2 10 10 12 -10 29 17 -6 6 11 5 11 0 32 -8 2 5 28 28 5 28 29 0 -6 -10 1 17 -5 32 26 16 19 28 4 11 -3 9 25 37 14 1 -7 3 Construct a frequency distribution using classes of -10 up to 0, 0 up to 10, etc. Classes Frequency -10 up to 0 10 0 up to 10 19 10 up to 20 18 20 up to 30 14 30 up to 40 6 Total 67 How many of the observations are at least 10 but less than 20? Number of observations 37 Construct a relative frequency distribution and a cumulative relative frequency distribution. (Round "Relative Frequency" and "Cumulative Relative Frequency" to 3 decimal places.) Class Relative Frequency Cumulative Relative Frequency -10 up to 0 0.149 0.149 0 up to 10 0.284 0.433 10 up to 20 0.269 0.702 20 up to 30 0.209 0.911 30 up to 40 0.089 1.000 Total 1.000 What percent of the observations are at least 10 but less than 20? (Round your answer to 1 decimal place.) Percent of observations 55.2% What percent of the observations are less than 20? (Round your answer to 1 decimal place.) Percent of observations 77.6% Graph a relative frequency polygon. Before plotting the points, round the "Relative Frequency" values to 3 decimal places. To earn full credit for this graph, you must plot all required points for polygon. Once all points have been plotted, click on the line (not individual points) and a tool icon will pop up. You can use this to enter exact coordinates for your points as needed.

          Consider the following data set:
1  
13  
11  
4  
4  
7  
13  
11  
13  
15  
2  
11  
5  
5  
3  
4  
8  
6  
7  
7  
5  
8  
2  
8  
11  
10  
6  
2  
10  
10  
12  
-10  
29  
17  
-6  
6  
11  
5  
11  
0  
32  
-8  
2  
5  
28  
28  
5  
28  
29  
0  
-6  
-10  
1  
17  
-5  
32  
26  
16  
19  
28  
4  
11  
-3  
9  
25  
37  
14  
1  
-7  
3  
Construct a frequency distribution using classes of -10 up to
0, 0 up to 10, etc.
  Classes
  Frequency
  -10 up to 0
  10
  0 up to 10
  19
  10 up to 20
  18
  20 up to 30
  14
  30 up to 40
  6
  Total
  67
How many of the observations are at least 10 but less than
20?
  Number of observations
  37
  
Construct a relative frequency distribution and a cumulative
relative frequency distribution. (Round "Relative
Frequency" and "Cumulative Relative Frequency" to 3 decimal
places.)
  Class
Relative
Frequency
Cumulative
Relative Frequency
  -10 up to 0
  0.149
  0.149
  0 up to 10
  0.284
  0.433
  10 up to 20
  0.269
  0.702
  20 up to 30
  0.209
  0.911
  30 up to 40
  0.089
  1.000
  Total
  1.000
  
What percent of the observations are at least 10 but less than
20? (Round your answer to 1 decimal
place.)
  Percent of observations
  55.2%
  
What percent of the observations are less than
20? (Round your answer to 1 decimal
place.)
  Percent of observations
  77.6%
  
Graph a relative frequency polygon.
Before plotting the points, round the "Relative
Frequency" values to 3 decimal places.
To earn full credit for this graph, you
must plot all required points for polygon.
Once all points have been plotted, click on the line
(not individual points) and a tool icon will pop up. You can use
this to enter exact coordinates for your points as
needed.

Added by Samuel B.

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