Math Problem Statement

You will use the information in the two-way table to make a segmented bar chart to show the relationship between environmental club membership and snowmobile use for the members of the sample. Begin by finding the conditional relative frequencies.

Solution

To find the correct relative frequencies, let’s calculate each entry in the two-way table as a percentage of the respective row totals. This way, we can determine the conditional relative frequencies of snowmobile use by environmental club membership status.

Here’s the breakdown of the table:

Table Data:

  • Total individuals surveyed: 1526
  • Environmental club membership breakdown:
    • Not members (No): 1221
    • Members (Yes): 305

Calculations for Each Category:

  1. Snowmobile Owner (No Environmental Club):

    • Frequency = 279
    • Total in the "No" column = 1221
    • 27912210.2284\frac{279}{1221} \approx 0.2284 or 22.8%
  2. Snowmobile Owner (Yes Environmental Club):

    • Frequency = 16
    • Total in the "Yes" column = 305
    • 163050.0525\frac{16}{305} \approx 0.0525 or 5.3%
  3. Snowmobile Renter (No Environmental Club):

    • Frequency = 497
    • Total in the "No" column = 1221
    • 49712210.4070\frac{497}{1221} \approx 0.4070 or 40.7%
  4. Snowmobile Renter (Yes Environmental Club):

    • Frequency = 77
    • Total in the "Yes" column = 305
    • 773050.2525\frac{77}{305} \approx 0.2525 or 25.3%
  5. Never Used Snowmobile (No Environmental Club):

    • Frequency = 445
    • Total in the "No" column = 1221
    • 44512210.3644\frac{445}{1221} \approx 0.3644 or 36.4%
  6. Never Used Snowmobile (Yes Environmental Club):

    • Frequency = 212
    • Total in the "Yes" column = 305
    • 2123050.6951\frac{212}{305} \approx 0.6951 or 69.5%

Summary Table with Correct Percentages:

Environmental Club: NoEnvironmental Club: Yes
Snowmobile Owner22.8%5.3%
Snowmobile Renter40.7%25.3%
Never Used36.4%69.5%

Would you like more details, or do you have any questions on how these calculations were done?


Related Questions:

  1. How would these percentages change if more members of the environmental club used snowmobiles?
  2. What do these percentages tell us about the relationship between environmental club membership and snowmobile use?
  3. Can you interpret the overall trend of snowmobile use for environmental club members compared to non-members?
  4. How might this data impact policy decisions regarding snowmobile use in national parks?
  5. What other types of visual representations could display this data effectively?

Tip:

When calculating percentages, double-check that you are dividing by the correct row or column total for conditional frequencies!

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Math Problem Analysis

Mathematical Concepts

Statistics
Conditional Relative Frequency
Two-Way Tables

Formulas

Conditional relative frequency = (Category frequency) / (Row or column total)

Theorems

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Suitable Grade Level

Grades 10-12