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# The article “Determination of Most Representative ISBN: 9780321629111 32

## Solution for problem 20E Chapter 1

Probability and Statistics for Engineers and the Scientists | 9th Edition

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Problem 20E

The article “Determination of Most Representative Subdivision” (?J. of Energy Engr., ?1993: 43–55) gave data on various characteristics of subdivisions that could be used in deciding whether to provide electrical power using overhead lines or underground lines. Here are the values of the variable x = total length of streets within a subdivision: a?. ?Construct a stem-and-leaf display using the thousands digit as the stem and the hundreds digit as the leaf, and comment on the various features of the display. b. ?Construct a histogram using class boundaries 0, 1000, 2000, 3000, 4000, 5000, and 6000. What proportion of subdivisions have total length less than 2000? Between 2000 and 4000? How would you describe the shape of the histogram?

Step-by-Step Solution:

Answer : Step 1 of 3 : Given, The article “Determination of Most Representative Subdivision” (J. of Energy Engr., 1993: 43–55) gave data on various characteristics of subdivisions that could be used in deciding whether to provide electrical power using overhead lines or underground lines. Here are the values of the variable x = total length of streets within a subdivision: 1280 960 340 1850 510 5320 1120 1000 2460 240 4390 2120 960 5850 396 2100 450 1320 2700 1419 1240 2250 530 2730 2109 3060 2320 3350 1670 3330 4770 2400 540 100 3380 1050 3150 3870 5770 360 5700 1250 3150 5220 500 2400 1890 Step 2 of 3 : a) We have to construct the stem and leaf display using the thousands digit as the stem and the hundreds digit as the leaf. Stem : tens and units digits. Leaf : first decimal place There are more observations against the stem value 0. Remaining values in the data set are greater than zero. Hence, it can be said that the distribution is positively skewed.

Step 3 of 3

##### ISBN: 9780321629111

This textbook survival guide was created for the textbook: Probability and Statistics for Engineers and the Scientists, edition: 9. Probability and Statistics for Engineers and the Scientists was written by and is associated to the ISBN: 9780321629111. This full solution covers the following key subjects: Using, subdivision, characteristics, length, subdivisions. This expansive textbook survival guide covers 18 chapters, and 1582 solutions. The answer to “The article “Determination of Most Representative Subdivision” (?J. of Energy Engr., ?1993: 43–55) gave data on various characteristics of subdivisions that could be used in deciding whether to provide electrical power using overhead lines or underground lines. Here are the values of the variable x = total length of streets within a subdivision: a?. ?Construct a stem-and-leaf display using the thousands digit as the stem and the hundreds digit as the leaf, and comment on the various features of the display. b. ?Construct a histogram using class boundaries 0, 1000, 2000, 3000, 4000, 5000, and 6000. What proportion of subdivisions have total length less than 2000? Between 2000 and 4000? How would you describe the shape of the histogram?” is broken down into a number of easy to follow steps, and 119 words. The full step-by-step solution to problem: 20E from chapter: 1 was answered by , our top Statistics solution expert on 05/06/17, 06:21PM. Since the solution to 20E from 1 chapter was answered, more than 822 students have viewed the full step-by-step answer.

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