2-2 example10

2-2 example10 - Student: Grady Sinlonton Colu'se: Mathll9:...

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Unformatted text preview: Student: Grady Sinlonton Colu'se: Mathll9: Elelnentaiy Statistics - Spring 3010 - CRN: 49339 Instructor: Shawn Pan-'ini - 16 weeks Date: 318310 Book: T1'iola: Elenlentaiy Statistics. lle Time: 11:03 AM Refer to the accompanying data set and use the weights (grams) of the coins to construct a frequency distribution. Begin with a lower class limit of 8.0000 g, and use a class width 010.0500 g. @ Click on icon to view the data. To construct a frequency distribution, first find the lower class limits. To find the lower class limits, add the class width to the preceding lower class limit, starting with the given first lower class limit. The first lower class limit is 8.0000, and the class width is 0.0500. Determine the second lower class limit. 8.0000 +0.0500 = 8.0500 Add 0.0500 to the second lower class limit to determine the third lower class limit. 8.0500 +0.0500 = 8.1000 The necessary lower class limits are shown below. 8.0000— 8.0500- 8.1000- 8.1500- 8.2000- 8.2500- 8.3000- 83500— To find the upper class limits, use the lower class limits to determine the largest numbers that can belong to the different classes. Be sure the classes do not overlap. The first upper class limit is the largest number that does not belong to the second class, which has a lower limit of 8.0500. To determine the largest number that does not belong to the second class, subtract 0.000] from the second lower class limit. 8.0500 — 0.000] = 8.0499 The necessary classes are shown below. 8.0000- 8.0499 8.0500- 8.0999 8.1000- 8.1499 8.l500— 8.1999 8.2000— 8.2499 8.2500— 8.2999 8.3000— 8.3499 8.3500- 8.3999 To find the frequencies, take each individual data value and put a tally mark in the appropriate class, then add the tally Page 1 Student: Grady Simonton Colu'se: 1\-Iat11119: Elementaiy Statistics - Spring 2010 - C‘RN: 49239 Instructor: Shawn Pan-'ini - 16 weeks Date: 3.-"'18.-"'10 Book: T1‘iola: Elementaiy Statistics. Me Time: 11:03 AM marks to find the total frequency for each class. Complete the frequency distribution by tallying the frequencies for each class. The completed frequency distribution is shown below. Weight (g) Frequency 80000 - 8.0499 4 8.0500 - 8.0999 8.1000- 8.1499 8.1500- 8.1999 8.2000 - 8.2499 8.2500 - 8.2999 8.3000 - 8.3499 8.3500 - 8.3999 WWLONLHO‘.|—‘ Data Table Coin Weights (grams) 8.2795 8.1542 8.2262 8.0444 8.1687 8.2648 8.0362 8.2123 8.2186 8.3153 8.1401 8.1111 8.2415 8.2562 8.0421 8.1417 8.3803 8.0228 8.2416 8.1496 8.1003 8.0513 8.1948 8.314? 8.2687 8.3851 8.1269 8.2312 8.3219 8.3528 Page 2 ...
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2-2 example10 - Student: Grady Sinlonton Colu'se: Mathll9:...

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