Ron Weighs 70 Kilograms

question 39

Multiple Choice

Ron weighs 70 kilograms.A graph relates Ron's weight on the vertical axis to Nancy's consumption of ice cream on the horizontal axis.Which statement describes the line on the graph?  

• A) The line is horizontal at weight = 70. 
• B) The line is horizontal at weight = 0. 
• C) The line is positively sloped with decreasing slope. 
• D) The line is vertical at weight = 70.

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Definitions:

Experimenter's Manipulations

The deliberate alteration of variables by a researcher in an experiment to determine their effects on the outcome.

Standard Deviation

A commonly used measure of variability that indicates the average difference between scores in a distribution and their mean.

Arithmetic Mean

An average that is calculated by adding up a set of quantities and dividing the sum by the total number of quantities in the set.

Experimenter Effects

Influences that the experimenter's presence, behavior, or characteristics may have on the outcome of an experiment.