What Is Currently Known About Fluoride in Drinking Water Supplies?​

question 74

Multiple Choice

What is currently known about fluoride in drinking water supplies?​

• A)All bottled water contains fluoride added as part of the bottling process.​
• B)Scientific evidence has shown that communities with fluoridated water have higher cancer rates.
• C)​Very few communities in the U.S.have fluoridated water.
• D)​In communities where fluoride is lacking in the water there is a high dental decay rate.
• E)​Where the water supply contains too little fluoride,discoloration of the teeth occurs due to fluorosis.

---

Definitions:

Correlation Coefficient

A statistical measure that calculates the strength and direction of a linear relationship between two quantitative variables.

Residuals

Differences between observed values and the estimated values in a statistical model, reflecting the amount of unexplained variance in the model.

Fitted Values

Estimated values predicted by a regression model, based on the observed data.

Simple Linear Regression

A statistical method that models the linear relationship between a dependent variable and one independent variable by fitting a linear equation to observed data.