### 10.4 Outdoor Sports

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• 1. Ages of Campers

The graph shows the demographics of campers in the United States. Is a camper more likely to be younger than 18 years old or older than 44 years old? Explain your reasoning. (See Example 1 and Example 2.)

• Worked-Out Solution

From the graph, 29.2% of campers are 45+. To find the percent of campers younger than 18 years old, add the percents for the two age groups under 18-24. The percent of campers younger than 18 years old is

So, a camper is more likely to be older than 44 years old because a larger percent of campers are older than 44 years old than are younger than 18 years old.

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``` _____     __   __     _____   _    _    _    _
|  __ \\   \ \\/ //   / ___// | || | || | \  / ||
| |  \ ||   \ ` //    \___ \\ | || | || |  \/  ||
| |__/ ||    | ||     /    // | \\_/ || | .  . ||
|_____//     |_||    /____//   \____//  |_|\/|_||
-----`      `-`'   `-----`     `---`   `-`  `-`

```
• 2. Age of Campers

The graph shows the demographics of campers in the United States. What is the probability that a random camper is a male between the ages of 25 and 44? (See Example 1 and Example 2.)

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```  ______   _    _     _____      ___     _    _
/_____// | || | ||  /  ___||   / _ \\  | || | ||
`____ `  | || | || | // __    | / \ || | || | ||
/___//   | \\_/ || | \\_\ ||  | \_/ || | \\_/ ||
`__ `     \____//   \____//    \___//   \____//
/_//       `---`     `---`     `---`     `---`
`-`
```
• 3. Incomes of Campers

The graph shows the demographics of campers in the United States. The median household income in the United States is about \$50,000. On average, do campers earn more or less than the median household income? Explain your reasoning. (See Example 1 and Example 2.)

• Worked-Out Solution

Because the median household income in the United States is about \$50,000, you know that about 50% of Americans earn more than \$50,000 per year. To find the percent of campers who earn more than \$50,000 per year, add the percents of campers with incomes of \$50,000 or more.

On average, campers earn more than the median household income because 65.1% of campers earn more than \$50,000 while only 50% of the general population earns more than \$50,000.

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``` __   _     ______    _____    __   __   _    _
| || | ||  /_   _//  / ____||  \ \\/ // | |  | ||
| '--' ||   -| ||-  / //---`'   \ ` //  | |/\| ||
| .--. ||   _| ||_  \ \\___      | ||   |  /\  ||
|_|| |_||  /_____//  \_____||    |_||   |_// \_||
`-`  `-`   `-----`    `----`     `-`'   `-`   `-`

```
• 4. African American Campers

The graph shows the demographics of campers in the United States. The graph is based on a survey of 41,500 campers. How many of the campers in the survey are African American? (See Example 1 and Example 2.)

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``` _    _      ___     _____      ______   __   __
| \  / ||   / _ \\  |  __ \\   /_   _//  \ \\/ //
|  \/  ||  | / \ || | |  \ ||   -| ||-    \   //
| .  . ||  | \_/ || | |__/ ||   _| ||_    / . \\
|_|\/|_||   \___//  |_____//   /_____//  /_//\_\\
`-`  `-`    `---`    -----`    `-----`   `-`  --`

```
• 5. Likelihood that a Person is a Camper

The graph shows the demographics of campers in the United States. Can you use the graph to determine the likelihood that any random person participates in camping? Explain your reasoning. (See Example 1 and Example 2.)

• Worked-Out Solution

You cannot use the graph to determine the likelihood that any random person participates in camping because it does not tell you what percent of the general population participates in camping.

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```  _____     _____   __    __   _    _
|__  //   |  ___|| \ \\ / // | || | ||     ___
/ //    | ||__    \ \/ //  | || | ||    /   ||
/ //__   | ||__     \  //   | \\_/ ||   | [] ||
/_____||  |_____||    \//     \____//     \__ ||
`-----`   `-----`      `       `---`       -|_||
`-`
```
• 6. Education of Campers

The graph shows the demographics of campers in the United States. Explain how the education bar is different from the other four bars in the graph. (See Example 1 and Example 2.)

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```            ______    ____       ___     __   __