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Brownian motion

mathmari
in Homework Help

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Hi! I hope someone can help me with the following exercise...

n>=1, 0=t_{0}<t_{1}<...<t_{n}, a_{1},a_{2},...,a_{n} ε R. Show that the random variable a_{1}*B(t_{1})+...+a_{n}*B(t_{n}) is normally distributed and find its mean value and variance.

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