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| Topic: |
Science
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| Number of pages / Number of words: |
2 / 433 |
Essay's paper body
Date : Sep 3’ 08
Solution to Prob 2.1
Expected Value:-
E(X) =
E(X) = [x1 * P(X= x1 )] + [ x2 * P(X= x2 )]
= [10 * 18/38] + [-10 * 20/38]
= 4.7368 - 5.2631
= -0.5263
Variance:-
V(X) = ?2 = .
= [{10 – (-0.5263)}2 * (18/38)] + [{-10 – (-0.5263)}2 * (20/38)]
= 99.7230
Standard Deviation:-
? = ?99...
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Date : Sep 3’ 08
Solution to Prob 2.1
Expected Value:-
E(X) =
E(X) = [x1 * P(X= x1 )] + [ x2 * P(X= x2 )]
= [10 * 18/38] + [-10 * 20/38]
= 4.7368 - 5.2631
= -0.5263
Variance:-
V(X) = ?2 = .
= [{10 – (-0.5263)}2 * (18/38)] + [{-10 – (-0.5263)}2 * (20/38)]
= 99.7230
Standard Deviation:-
? = ?99...
Essay fragment
General points of the essay
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