In a Statistic Class,10 Scores Were Randomly Selected with the Following

question 112

Multiple Choice

In a statistic class,10 scores were randomly selected with the following results were obtained (mean = 71.5) : 74,73,77,77,71,68,65,77,67,66 What is the variance?

• A)22.72
• B)12.00
• C)4.77
• D)516.20
• E)144.00

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Definitions:

Factorial Design

An experimental design used to evaluate the effects of two or more independent variables on a set of dependent variables.

Independent Variables

Independent variables are the factors in an experiment that are manipulated or changed by the researcher to observe their effects on the dependent variable.

Interaction

Interaction can describe the reciprocal effect of two or more variables on each other in a study, or the communication and influence between individuals in social psychology.

Factorial Design

An experimental setup that allows researchers to study the effects of two or more independent variables on a dependent variable simultaneously.