In a normal distribution, 99.7% of the data fall within how many standarddeviations of the mean?A. It cannot be determined from the given information.B. Three standard deviationsOC. One standard deviationD. Two standard deviations

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A data set lists weights (Ib) of plastic discarded by households. The highest weight is 5.47 Ib, the mean of all of the weights is x = 1.819 Ib, and the standard deviation of the weights is s =1.401 lb. a. What is the difference between the weight of 5.47 Ib and the mean of the weights? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the weight of 5.47 Ib to a z score d. If we consider weights that convert to z scores between -2 and 2 to be neither significantly low nor significantly high, is the weight of 5.47 Ib significant? a. The difference is Ib. (Type an integer or a decimal. Do not round.)
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In a normal distribution, 99.7% of the data fall within how many standard deviations of the mean? A. It cannot be determined from the given information. B. Three standard deviations O C. One standard deviation O D. Two standard deviations