The article Determination of Most Representative Subdivision .of Energy Engr., 1

Question

The article Determination of Most Representative Subdivision .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 5320 4390 2100 1240 3060 4770 1050 360 3330 3380 340 1000 960 1320 530 3350 540 3870 1250 2400 960 1120 2120 450 2250 2320 2400 3150 5700 5220 500 1850 2460 5850 2700 2730 1670 100 5770 3150 1890 510 240 396 1419 2109 (a) Construct a stem-and-leaf display by truncating the data and using the thousands digit as the stem and the hundreds digit as the leaf, and comment on the various features of the display. (Enter your answers from slest to largest. Enter NONE in any unused nswer blanks.) Stem Leaf(units hundreds) 0 11123334555599| 00122234688 11112344477 3 0113338 4 3 7 23778

Explanation / Answer

Stem and leaf shows that distribution is unimodal, positively skewed. The typical value (average) is pull upward because distribution is positively skewed. It is lie somewhere in low's 2000.

Correct option is 4th and 6th.

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(b)

Histogram shows that distribution is unimodal, positively skewed. The typical value (average) is pull upward because distribution is positively skewed. It is lie somewhere in low's 2000.

Correct option is 1st and 6th.

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