Complete given sentence with the correct form of the modifier in parentheses.
A hurricane is _____ than a tropical storm. (bad)

A 14-m by 10-m by 3.0-m basement had a high radon content. On the day the basement was sealed off from its surroundings so that no exchange of air could take place, the partial pressure of ${ }^{222} \mathrm{Rn}$ was $1.2 \times 10^{-6}$ mmHg. Calculate the number of ${ }^{222} \mathrm{Rn}$ isotopes $\left(t_{\frac{1}{2}}=3.8 \mathrm{~d}\right)$ at the beginning and end of 31 days. Assume STP conditions.

Give an example of two events that are not mutually exclusive.

Assume that we have two events, $A$ and $B ,$ that are mutually exclusive. Assume further that we know $P ( A ) = .30$ and $P ( B ) = .40$ .

What general conclusion would you make about mutually exclusive and independent events given the results of this problem?

Suppose a person is randomly selected. Label each pair of events as mutually exclusive or not mutually exclusive.

a. The person is taller than 70 inches; the person is male

b. The person does not own a pet; the person owns a guinea pig

Suppose that A and B are mutually exclusive. What is P(A|B) and P(B|A)? Explain you reasoning.

Describe what is meant by mutually exclusive events.

The following kind of problem cannot be solved directly with algebraic methods, but it can be solved by using intersect on the TI-83/84 or Goal Seek in EXCEL. Doris borrows $3000 at a 7.2% interest rate and agrees to make monthly payments of$30 per month. How long will it take to repay the loan? This is an amortization loan with P=3000, R=30, and $i=\frac{0.072}{12}=0.006$, so $3000=30\left[\frac{1-1.006^{-n}}{0.006}\right]$. We can find n by finding the intersection of the graphs $y=30\left[\frac{1-1.006^{-x}}{0.006}\right]$ and y=3000. This occurs at x=153.17. It will take about 153 months, or 12.75 years, to pay off the loan. Harold borrows $7600 at 7.5% interest rate and agrees to repay the loan at$60 per month. How long will it take to repay the loan?

Determine whether the given event is mutually exclusive or not mutually exclusive. Then find the probability. Round to the nearest tenth of a percent, if necessary.

Tossing a coin and getting heads or tails.

Can A an B be mutually exclusive if P(A) = .4 and P(B) = .7? If P(A) = .4 and P(B) = .3? Why?

Two separate occurrences are a. always mutually exclusive b. never mutually exclusive c. always complementary

Use the psychometric chart to find the missing property of: $\Phi, \omega, T_{\mathrm{wet}}, T_{\mathrm{dry}}$. a. $T_{\mathrm{dry}}=25^{\circ} \mathrm{C}, \Phi=80 \%$. $T_{\mathrm{dry}}=15^{\circ} \mathrm{C}, \Phi=100 \%$. c. $T_{\mathrm{dry}}=20^{\circ} \mathrm{C}, \omega=0.008$. d. $T_{\mathrm{dry}}=25^{\circ} \mathrm{C}, T_{\mathrm{wet}}=23^{\circ} \mathrm{C}$

What is a mutually exclusive project? How should managers rank mutually exclusive projects?

For each part below, classify the statement as true or false. Justify your answer. (a) If one event is the complement of another event, then the two events are mutually exclusive. (b) If two events are mutually exclusive, then one event is the complement of the other.