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2. The following frequency distribution depicts the marks received by 50 students in the Statistics examination at one local university. Marks 60 – 64 Frequency 2 65 – 69 1 70 – 74 75 - 79 12 80 - 84 18 85 - 89 90 – 94 95 - 99 1 a) Calculate the mean and standard deviation of the mark of the students.

2. The following frequency distribution depicts the marks received by 50 students in the Statistics examination at one local university. Marks 60 – 64 Frequency 2 65 – 69 1 70 – 74 75 - 79 12 80 - 84 18 85 - 89 90 – 94 95 - 99 1 a) Calculate the mean and standard deviation of the mark of the students.

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
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2. The following frequency distribution depicts the marks received by 50 students in the Statistics examination at one local university. Marks Frequency 60 - 64 2 65 - 69 1 70 - 74 75 - 79 12 80 - 84 18 85 - 89 90 - 94 5 95 - 99 1 a) Calculate the mean and standard deviation of the mark of the students. b) The students with mark exceed 87% will be given a prize. Examine the percentage of the students who will be given the prize. c) Examine an interval of the marks of at least 75% of the students at that local university by using Chebyshev's Theorem.
Transcribed Image Text:2. The following frequency distribution depicts the marks received by 50 students in the Statistics examination at one local university. Marks Frequency 60 - 64 2 65 - 69 1 70 - 74 75 - 79 12 80 - 84 18 85 - 89 90 - 94 5 95 - 99 1 a) Calculate the mean and standard deviation of the mark of the students. b) The students with mark exceed 87% will be given a prize. Examine the percentage of the students who will be given the prize. c) Examine an interval of the marks of at least 75% of the students at that local university by using Chebyshev's Theorem.
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