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A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the following observations on the area of scleral lamina (mm²) from human optic nerve heads: 2.83 2.71 2.76 3.76 2.44 2.77 3.89 4.20 3.78 4.25 3.47 4.49 2.38 3.67 2.75 3.59 2.92 n USE SALT (a) Calculate Ex; and Ex,2. Ex; = mm2 Ex,? = 4. mm (b) Use the values calculated in part (a) to compute the sample variance s² and then the sample standard deviation s. (Round your answer to four decimal places.) s2 = mm 4 S = mm2

A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the following observations on the area of scleral lamina (mm²) from human optic nerve heads: 2.83 2.71 2.76 3.76 2.44 2.77 3.89 4.20 3.78 4.25 3.47 4.49 2.38 3.67 2.75 3.59 2.92 n USE SALT (a) Calculate Ex; and Ex,2. Ex; = mm2 Ex,? = 4. mm (b) Use the values calculated in part (a) to compute the sample variance s² and then the sample standard deviation s. (Round your answer to four decimal places.) s2 = mm 4 S = mm2

A First Course in Probability (10th Edition)
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 study of the relationship between age and various visual functions (such as acuity and depth perception) reported the following observations on the area of scleral lamina (mm2) from human optic nerve heads: 2.83 2.71 2.76 3.76 2.44 2.77 3.89 4.20 3.78 4.25 3.47 4.49 2.38 3.67 2.75 3.59 2.92 n USE SALT (a) Calculate Ex; and Ex,". Ex; = mm? Ex,2 = 4 m (b) Use the values calculated in part (a) to compute the sample variance s and then the sample standard deviation s. (Round your answers to four decimal places.) s2 = 4 mm S = 2 mm Need Help? Read It Watch It
Transcribed Image Text:A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the following observations on the area of scleral lamina (mm2) from human optic nerve heads: 2.83 2.71 2.76 3.76 2.44 2.77 3.89 4.20 3.78 4.25 3.47 4.49 2.38 3.67 2.75 3.59 2.92 n USE SALT (a) Calculate Ex; and Ex,". Ex; = mm? Ex,2 = 4 m (b) Use the values calculated in part (a) to compute the sample variance s and then the sample standard deviation s. (Round your answers to four decimal places.) s2 = 4 mm S = 2 mm Need Help? Read It Watch It
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Given data xi=2.83,2.71,2.76,3.76,2.44,2.77,3.89,4.20,3.78,4.25,3.47,4.49,2.38,3.67,2.75,3.59,2.92n=17

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