IQ Scores for a Population-Based Sample Usually Fall into a __________

question 54

Multiple Choice

IQ scores for a population-based sample usually fall into a __________ or __________ curve, in which most people fall near the middle and the proportions decrease at the low and high extremes.

• A)normal distribution; bell
• B)camelback; double hill
• C)inverted-U; inverted-V
• D)variance from the mean; absolute value

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Definitions:

2,3-Dimethylbutane

A branched chain alkane with the formula C6H14, having methyl groups at the second and third carbon atoms of the butane chain.

Compound Name

The official identification of a chemical substance based on its structural elements and molecular composition.

Heat of Combustion

The amount of heat released when a substance completely burns in oxygen, a measure of the energy content of a fuel.

Cycloalkanes

Saturated, ring-shaped hydrocarbons with the general formula CnH2n, where n is the number of carbon atoms in the ring.