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The Empirical Rule applies rough approximations to probabilties for any unimodal, symmetric distribution. But for the Normal distribution we can be more precise, as the figure shows. Use the figure and the fact that the Normal curve is symmetric to answer the questions. Do not use a Normal table or technology. Complete parts a through e. a. Roughly what percentage of z-scores are between -2 and 2? b. Roughly what percentage of z-scores are between -3 and 3? c. Roughly what percentage of z-scores are between -1 and 1? Z -3 -2 -1 68% 95% Almost All 1 2 ✓

The Empirical Rule applies rough approximations to probabilties for any unimodal, symmetric distribution. But for the Normal distribution we can be more precise, as the figure shows. Use the figure and the fact that the Normal curve is symmetric to answer the questions. Do not use a Normal table or technology. Complete parts a through e. a. Roughly what percentage of z-scores are between -2 and 2? b. Roughly what percentage of z-scores are between -3 and 3? c. Roughly what percentage of z-scores are between -1 and 1? Z -3 -2 -1 68% 95% Almost All 1 2 ✓

MATLAB: An Introduction with Applications
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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The Empirical Rule applies rough approximations to probabilties for any unimodal, symmetric distribution. But for the Normal distribution we can be more precise, as the figure shows. Use the figure and the fact that the Normal curve is symmetric to answer the questions. Do not use a Normal table or technology. Complete parts a through e. a. Roughly what percentage of z-scores are between -2 and 2? b. Roughly what percentage of z-scores are between -3 and 3? c. Roughly what percentage of z-scores are between -1 and 1? Z -3 -2 -1 68% 95% Almost All 1 2 ✓
Transcribed Image Text:The Empirical Rule applies rough approximations to probabilties for any unimodal, symmetric distribution. But for the Normal distribution we can be more precise, as the figure shows. Use the figure and the fact that the Normal curve is symmetric to answer the questions. Do not use a Normal table or technology. Complete parts a through e. a. Roughly what percentage of z-scores are between -2 and 2? b. Roughly what percentage of z-scores are between -3 and 3? c. Roughly what percentage of z-scores are between -1 and 1? Z -3 -2 -1 68% 95% Almost All 1 2 ✓
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