Choose the One Alternative That Best Completes the Statement or Answers

question 7

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-The table lists the smoking habits of a group of college students. $$\begin{array} { l | c | c | c | c } \text { Sex } & \text { Non-smoker } & \text { Regular Smoker } & \text { Heavy Smoker } & \text { Total } \\\hline \text { Man } & 135 & 36 & 5 & 176 \\\text { Woman } & 187 & 21 & 15 & 223 \\\text { Total } & 322 & 57 & 20 & 399\end{array}$$ If a student is chosen at random, find the probability of getting someone who is a regular or heavy smoker. Round your answer to three decimal places.

• A)0.193
• B)0.662
• C)0.221
• D)0.128

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Definitions:

Rationalize

The process of modifying an expression to eliminate radicals from the denominator or complex numbers from the denominator of a fraction.

Denominator

The bottom part of a fraction that tells into how many equal parts the whole is divided.

Simplify

To simplify a mathematical expression to its most basic form.

Expression

A mathematical phrase that can include numbers, variables, and operation symbols but does not have an equality sign.