State How Many Modes You Would Expect for the Distribution

question 79

Multiple Choice

State how many modes you would expect for the distribution described.
-Sales of birthday cards over a one-year period

• A)Two
• B)None
• C)Three
• D)One

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Definitions:

Error Variable \(ε\)

In statistical modeling, particularly in linear regression, it represents unobserved random errors or deviations of observed values from their expected values.

Scatter Diagram

A graphical representation that shows the relationship between two quantitative variables by plotting data points on a two-dimensional plane.

Least Squares Regression

A statistical method used to find the best-fitting line through a set of data points by minimizing the sum of the squares of the vertical distances of the points from the line.

Coefficient of Correlation

A mathematical gauge that assesses the strength of the bond between the relative movements of two variables.