Assume that the heights of 7-year-old girls are normally distributed. The heights of 8 girls are given

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Assume that the heights of 7-year-old girls are normally distributed. The heights of 8 girls are given in z-scores below.

Emily 0.9 Jenny 1.7 Sadaf 0.0 Heather -1.3 Shenice 0.0 Kim Sarah -0.2 Carol 0.8 -1.2


(a) Which of these girls are taller than the mean?

(b) Which of these girls are at the mean? 

(c) Which of these girls are shorter than the mean?

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A Survey of Mathematics with Applications

ISBN: 978-0134112107

10th edition

Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde

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