The Proportion of Adolescent Girls Who Have Experienced Intercourse by Ages

question 74

Multiple Choice

The proportion of adolescent girls who have experienced intercourse by ages 17 is highest in:

• A) China.
• B) Mali.
• C) Tanzania.
• D) the United States.

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Definitions:

Expected Value

A calculated average of all possible values of a random variable, weighted by their probabilities.

Coin Toss

A random method used to determine a decision, consisting of throwing a coin into the air and checking which side is facing up when it lands.

Expected Value

A statistical concept that calculates the average outcome of a probability event or investment over the long term.

Expected Value

The anticipated value for an investment or probability-weighted average of all possible values in a given situation.