a set of data consists of 230 observations between $235 and $567. What class int
ID: 3200870 • Letter: A
Question
a set of data consists of 230 observations between $235 and $567. What class interval would you recommend? REQUENCY TABLES, FREQUENCY DISTRIBUTIONs, AND GRAPHIC Pvt (a) For this data, show that seven classes would be used to crease using the 2" rule. (b) Show that a class interval of 30 would summarize the data in (c) Construct frequency and relative frequency distributions for the (dO and a class interval of 30. Start dut How many the first class with a lower limit of 300 (e) What home runs traveled a distance of 360 up to 300 teot? What percentage of the home runs traveled a distance of 360 to 300 feet? percentage of the home up or more? runs traveled a distance of 390 feet 7. A set of data consists of 38 observations. How many classes would you recommend for the frequency distribution? 8. A set of data consists of 45 observations between so and $29.What size would you recom- mend for the class interval? 9. A set of data consists of 230 observations between $235 and $567. What class interval would you recommend? 10. A set of data contains 53 observations. The minimum value is 42 and the maximum value is 129. The data are to be organized into a frequency distribution. a. How many classes would you suggest? b. What would you suggest as the lower limit of the first class? of units in the last Wachesaw Manufacturing Inc. produced the following number 11. 16 days. 27 27 27 28 27 25 25 28 26 28 26 28 31 30 26 26 The information is to be organized into a frequency distribution. a. How many classes would you recommend? b. What class interval would you suggest? class? the relative fr c. What lower limit would you recommend for and determine d. Organize the information into a frequency distribution quency distribution. the distribution. metropolitan Seattle a e. Comment on the shape of number of outlets in the 20 are: 12. The Quick Change Oil Company has a outlet in the past The daily number of oil changes at the Oak Street 65 98 55 62 79 59 51 90 72 56 70 62 66 80 94 79 63 73 71 85 fraguency distributionExplanation / Answer
Solution:- The range = 567 - 235 = 332
The class interval is where the values of the variable go.
Assume you have the values ordered in ascendent order.
You decide work with 8 intervals.
332/8 = 41.5 = amplitud of interval
If your values are discrete, you can aproximate the amplitud at 42
Then,
235 - 277
277 - 319
319 - 361
361 - 403
403 - 445
445 - 487
487 - 529
529 - 571
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