An Eleven-Year-Old Girl Who Is Taller and Heavier Than an Eleven-Year-Old

question 51

Multiple Choice

An eleven-year-old girl who is taller and heavier than an eleven-year-old male classmate is

• A) unusual, since size differences between boys and girls are virtually nonexistent at this age.
• B) likely to excel in sports because of her size.
• C) probably not interested in the things most girls are interested in at the age of eleven.
• D) not at all unusual for this age.

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Definitions:

Bivariate Distributions

Probability distributions that involve two random variables, analyzing the correlation and dependencies between them.

Expected Values

The predicted value of a variable, calculated as the sum of all possible values each multiplied by the probability of its occurrence.

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values.

Mean

Mean is the arithmetic average of a set of numbers, calculated by dividing the sum of these numbers by the count of numbers in the set.