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  3. jan 523.9 feb 510.23 march 545.65 april 514.

Jan 523.9 Feb 510.23 March 545.65 April 514.23 May 550.71 June 505.34 July 525.34 August 600 Sept. 569.42 October 500.2 Novem. 533.12 December 507.11 What percentage of your bills are within two standard deviations of the mean?

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Statistics

Jan523.9
Feb510.23
March545.65
April514.23
May550.71
June505.34
July525.34
August600
Sept.569.42
October500.2
Novem.533.12
December

507.11

What percentage of your bills are within two standard deviationsof the mean?

Answer & Explanation Solved by verified expert
4.5 Ratings (946 Votes)
The answer isFirst we calculate the mean standard deviation Then wecalculate the upper and lower limits of the 2 SD of    See Answer
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