Find the Indicated Probability

question 20

Multiple Choice

Find the indicated probability.
-In a certain class of students, there are 11 boys from Wilmette, 3 girls from Kenilworth, 9 girls from Wilmette, 5 boys from Glencoe, 5 boys from Kenilworth and 7 girls from Glencoe. If the teacher calls upon a student to
Answer a question, what is the probability that the student will be from Kenilworth?

• A) 0.075
• B) 0.267
• C) 0.238
• D) 0.2

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Definitions:

Proportion

A part or share of the whole, often used in statistics and mathematics to describe the relationship between numbers or quantities.

Lowest Terms

The simplest form of a fraction when the numerator and denominator are reduced to their smallest possible numbers.

Ratio

An expression that compares two quantities in a specified order.

Fuel Mix

The combination of various fuel sources used to generate energy or power.