How Long Does the Sunspot Cycle Last, on Average

question 59

Multiple Choice

How long does the sunspot cycle last, on average?

• A) Between 25 and 35 days
• B) 365.25 days
• C) About seven years
• D) About 11 years
• E) About 76 years

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Definitions:

Interaction Effect

In statistics, the effect that occurs when the impact of one independent variable on a dependent variable varies depending on the level of another independent variable.

Independent Variable

The variable that is manipulated or changed in an experiment to see its effects on the dependent variable.

Factorial ANOVA

A statistical method for comparing the means of multiple groups across two or more independent variables.

Univariate

Describes analyses conducted with a single variable to describe its distribution, central tendency, and variability.