Chebyshevs Rule and the Empirical Rule are useful as a check on the calculation of the standard

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Chebyshev’s Rule and the Empirical Rule are useful as a check on the calculation of the standard deviation. For example, suppose we calculated the standard deviation for the R&D percentages (Table 2.6)  to be 3.92. Are there any “clues” in the data that enable us to judge whether this number is reasonable?Table 2.6 R&D Percentages for 50 Companies 13.5 7.2 9.7 11.3 8.0 9.5 7.1 7.5 17557 51661 5.6 7.4 8.2 9.0 7.2


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Statistics For Business And Economics

ISBN: 9781292227085

13th Global Edition

Authors: Terry Sincich James Mcclave, P. George Benson

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