Chapter 4.2, Problem 17E

To determine

(a)

The reason why $P$ is an exponential function of $Y$.

To determine

(b)

To find:

The decay factor for $P$.

To determine

(c)

To find:

The initial value of $P$.

To determine

(d)

To find:

A formula for $P$ as a function of $Y$.

To determine

(e)

To find:

The probability of no tsunami waves $15\text{ feet}$ or higher striking Crescent City over a $10\text{-year}$ period and over a $100\text{-year}$ period.

To determine

(f)

To find:

A formula for the probability $Q$ that at least one wave $15\text{ feet}$ or higher will strike Crescent City over a period of $Y\text{ years}$.