27. Suppose X is unimodal and symmetric with mean 10 and standard deviation 1. Answer the following questions with the help of Figure 7.7. Figure 7.7: The Empirical Rule (a) Approximately, what percent of observa- tions are between 9 and 11? (b) Approximately, what percent of observa- tions are between 9 and 12? (c) Approximately what percent of observa- tions are less than 9? (d) Approximately what percent of observa- tions are greater than 13? (e) What is the 84th percentile for X? X: 7 (f) What is the 16th percentile for X? 10 11 12 13 Z: -3 -2 -1 3

27. Suppose X is unimodal and symmetric with mean 10 and standard deviation 1. Answer the following questions with the help of Figure 7.7. Figure 7.7: The Empirical Rule (a) Approximately, what percent of observa- tions are between 9 and 11? (b) Approximately, what percent of observa- tions are between 9 and 12? (c) Approximately what percent of observa- tions are less than 9? (d) Approximately what percent of observa- tions are greater than 13? (e) What is the 84th percentile for X? X: 7 (f) What is the 16th percentile for X? 10 11 12 13 Z: -3 -2 -1 3

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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