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Expected Count = row totalxcolumn total table total College Non-College Graduate Graduate Support 154 132 Oppose 180 126 Do not know 104 131 Total 438 389 How many llege graduates would we expect to OPPOSE drilling? Round to one decimal place. 144

Expected Count = row totalxcolumn total table total College Non-College Graduate Graduate Support 154 132 Oppose 180 126 Do not know 104 131 Total 438 389 How many llege graduates would we expect to OPPOSE drilling? Round to one decimal place. 144

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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**Calculating Expected Counts in a Contingency Table** In this lesson, we'll examine how to calculate expected counts in a contingency table. **Expected Count Formula** Expected Count = \( \frac{\text{row total} \times \text{column total}}{\text{table total}} \) **Contingency Table:** | | College Graduate | Non-College Graduate | |----------------------|------------------|----------------------| | Support | 154 | 132 | | Oppose | 180 | 126 | | Do not know | 104 | 131 | | **Total** | **438** | **389** | The table total (sum of all frequencies) is 827. Now, let's calculate the expected number of college graduates who would **oppose** drilling. - **Row Total (Oppose):** 180 + 126 = 306 - **Column Total (College Graduate):** 438 Using the formula: Expected Count for College Graduates Opposing = \( \frac{306 \times 438}{827} \) **Result**: 144.0 (rounded to one decimal place)
Transcribed Image Text:**Calculating Expected Counts in a Contingency Table** In this lesson, we'll examine how to calculate expected counts in a contingency table. **Expected Count Formula** Expected Count = \( \frac{\text{row total} \times \text{column total}}{\text{table total}} \) **Contingency Table:** | | College Graduate | Non-College Graduate | |----------------------|------------------|----------------------| | Support | 154 | 132 | | Oppose | 180 | 126 | | Do not know | 104 | 131 | | **Total** | **438** | **389** | The table total (sum of all frequencies) is 827. Now, let's calculate the expected number of college graduates who would **oppose** drilling. - **Row Total (Oppose):** 180 + 126 = 306 - **Column Total (College Graduate):** 438 Using the formula: Expected Count for College Graduates Opposing = \( \frac{306 \times 438}{827} \) **Result**: 144.0 (rounded to one decimal place)
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