Math Problem Statement
what i did is looking at the flips as a binomial variable of bin(3,0.5) so that its variance is 0.75 and then V(3flip -3) is 9V(flip) and I got 9*0.75 which is 6.75 while you got 36.75. If i understood correctly my mistake was looking at the flips like they where independant which is of course wrong. the formula i used doesn't work when the variables are dependant. did i understand correctly?
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Binomial Distribution
Variance
Independence vs Dependence of Random Variables
Formulas
Variance formula: V(X) = p(1 - p)
Theorems
-
Suitable Grade Level
Advanced Mathematics
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