math 218 fall 2003 final

# C consider the same stock as in part b find the

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Unformatted text preview: actly 6 of the next 10 trading days. (c) Consider the same stock as in part (b). Find the probability that its price increases on between 50 and 70 (inclusive) of the next 100 trading days. Problem 4. Travelling along the Iceﬁelds Parkway in the Rocky Mountains, motorists sometimes see mountain goats standing at the side of the road. The points along the highway where the animals are sighted are random and independent. Driving along any 10km stretch of the highway, the probability that a motorist will pass exactly k mountain goats is e−2.5 · (2.5)k . k! (a) What is the mean distance along the highway a motorist must travel before passing the ﬁrst mountain goat? (b) What is the standard deviation of the distance along the highway a motorist travels be...
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