1. The table below lists the ages of the U.S. president at their inauguration. 57 61 57 57 57 61 50 47 55 55 54 46 54 58 54 68 51 49 64 50 48 65 52 56 46 56 55 51 54 49 42 51 54 51 60 62 43 55 56 61 52 69 64 47 70 78 (a) Construct a frequency distribution for the inauguration ages with a first class of 40-44 and equal class widths for each class after. (b) Draw a histogram for the inauguration ages. (c) Describe the shape of the histogram.
1. The table below lists the ages of the U.S. president at their inauguration. 57 61 57 57 57 61 50 47 55 55 54 46 54 58 54 68 51 49 64 50 48 65 52 56 46 56 55 51 54 49 42 51 54 51 60 62 43 55 56 61 52 69 64 47 70 78 (a) Construct a frequency distribution for the inauguration ages with a first class of 40-44 and equal class widths for each class after. (b) Draw a histogram for the inauguration ages. (c) Describe the shape of the histogram.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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1. The table below lists the ages of the U.S. president at their inauguration.
57 61
57 57 58 57 61 54 68 51 49 64
50 48 | 46
65 52 56
54 51 60 62 43 55
54 49 50 47 55 55 | 54 42 51 56 55 51
56 61 52 69 64 46 54 47 70 | 78
(a) Construct a frequency distribution for the inauguration ages with a first class of 40-44 and equal
class widths for each class after.
(b) Draw a histogram for the inauguration ages.
(c) Describe the shape of the histogram.
(d) Create a stem and leaf diagram for the inauguration ages.
2. The Prescott National Bank has six tellers to sce customers. The data in the following table provide
the mumber of busy tellers observed during 25 spot checks.
65415
9.
6 115
5121413
3.
15-06
31412
1.
(a) Create a relative freqiuency distribuit ion using the data above
(b) Draw a relative frequency histogram.
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a) It is given that first class should be 40-44 and after this class, remaining classes should have equal width.
Therefore remaining classes should be like 44-48,48-52,52-56,...,76-80
Frequency distribution table:
| Class | Frequency |
| 40-44 | 2 |
| 44-48 | 4 |
| 48-52 | 8 |
| 52-56 | 11 |
| 56-60 | 8 |
| 60-64 | 5 |
| 64-68 | 3 |
| 68-72 | 4 |
| 72-76 | 0 |
| 76-80 | 1 |
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