Which Equation Shown Is Correct for a Normal Distribution with a Median

question 35

Multiple Choice

Which equation shown is correct for a normal distribution with a median of 25 and a standard deviation of 5?

• A) \(f(x)=\frac{1}{\sqrt{10 \pi}} e^{\frac{-(x-25)^{2}}{25}}\)
• B) \(f(x)=\frac{1}{\sqrt{25 \pi}} e^{\frac{-(x-25)^{2}}{25}}\)
• C) \(f(x)=\frac{1}{\sqrt{50 \pi}} e^{\frac{-(x-25)^{2}}{50}}\)
• D) \(f(x)=\frac{1}{\sqrt{100 \pi}} e^{\frac{-(x-100)^{2}}{50}}\)

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Definitions:

Demographic Questions

Questions used in surveys or research that collect data about the characteristics of populations, such as age, gender, income level, and educational background.

Construct Validity

The extent to which a test measures what it claims, or purportedly aims, to be measuring.

Independent Variable

The factor in a study that is deliberately altered by the investigator to observe its effect on the outcome variable.

Experimental Conditions

The controlled aspects of a scientific experiment designed to test the effects of independent variables on dependent variables.