In a Study Conducted for the State Department of Education,30

question 67

Multiple Choice

In a study conducted for the state Department of Education,30 percent of the teachers who left teaching did so because they were laid off.Assume that we randomly select 10 teachers who have recently left their profession.Find the probability that exactly 4 of them were laid off.

• A) .3000
• B) .2668
• C) .2001
• D) .0090

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Definitions:

Math Skill

The ability to perform mathematical functions, which includes arithmetic operations as well as more complex tasks involving logic and reasoning.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate together.

Stressed

A physical or psychological state resulting from circumstances that feel challenging or threatening.

Experiment

A method of research in the sciences or social sciences in which variables are manipulated to observe the effect on some behavior or mental process.