MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Let S be a continuous random variable representing the students' study time (in hours) for
their Statistics final paper. The probability density function is given by:
= {(2 + + 5
4s
15
f(s) =
i) Calculate the expected value of S.
ii) Calculate the variance of S.
iii) Determine E (1145 - 7S - 6S²).
,1 ≤s≤4
, otherwise
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Transcribed Image Text:Let S be a continuous random variable representing the students' study time (in hours) for their Statistics final paper. The probability density function is given by: = {(2 + + 5 4s 15 f(s) = i) Calculate the expected value of S. ii) Calculate the variance of S. iii) Determine E (1145 - 7S - 6S²). ,1 ≤s≤4 , otherwise
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