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50 61 66 60 63 67 73 82 89 92 Five number summary J0. Five number summary 0 . 61. b65. 82.92 Mean 103 Range42 Mid-Range Standard Deviation 13.5 Find the z- score for test scores of 70 and 90 What percent of students earned "A" Grade of 90 or Higher?

50 61 66 60 63 67 73 82 89 92 Five number summary J0. Five number summary 0 . 61. b65. 82.92 Mean 103 Range42 Mid-Range Standard Deviation 13.5 Find the z- score for test scores of 70 and 90 What percent of students earned "A" Grade of 90 or Higher?

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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What percent of students earned an "A" grade or 90 or higher? What percebt of students earned a passing grade of 70 or higher? - Grades: 50,60,61,63,66,67,73,82,89,92
Record your scores 50 60 63 66 67 73 89 92 Five number summary 50, 61. b65. 82.92 82.92 Mean 10.3 Range42 Mid-Range 13.5 Standard Deviation Find the z- score for test scores of 70 and 90 What percent of students earned "A" Grade of 90 or Higher?
Transcribed Image Text:Record your scores 50 60 63 66 67 73 89 92 Five number summary 50, 61. b65. 82.92 82.92 Mean 10.3 Range42 Mid-Range 13.5 Standard Deviation Find the z- score for test scores of 70 and 90 What percent of students earned "A" Grade of 90 or Higher?
Expert Solution
Step 1

We have given that the five  number summary 50, 61, 66.5, 82, 92. 
Mean = 70.3,         Range = 42

Mid-range = 72,         Standard deviation = 13.5

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