If One Extrapolated an Age Trend Mentioned in the Textbook

question 6

Multiple Choice

If one extrapolated an age trend mentioned in the textbook, one would estimate the risk of Alzheimer's disease at age 80 as ______.

• A) 40%
• B) 50%
• C) 70%
• D) 80%

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Definitions:

Chi-Square

A statistical test used to determine if a significant relationship exists between two categorical variables in a contingency table.

Degrees of Freedom (df)

Number of values or quantities free to vary when a statistic is used to estimate a parameter.

Expected Frequency

In statistics, the frequency expected in a category of a contingency table under the assumption that the null hypothesis is true.

Chi-Square

A statistical test that measures the difference between observed and expected frequencies in categorical data.