Problem preview

S-MD.6 Warmup M2-072-A11-V03

Use probability to make fair decisions, such as lotteries or random selection.

Identify the hidden bias in a proposed random selection method by comparing probabilities

Problem

Compare the eligible population with the people actually entered through raised hands, then identify the inclusion problem before the random draw occurs.

Answer choices

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Everyone has an equal chance as long as they are in the room.

Students who raise their hands more than once have a higher chance.

The method is fair because the winner is picked randomly from the raised hands.

Not all eligible people are equally included in the drawing.

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Curriculum context

Course: Math II
Standard: S-MD.6
Category: Statistics and Probability
Domain: Using Probability to Make Decisions
Objective: Use probability to make fair decisions, such as lotteries or random selection.
Problem type: Identify the hidden bias in a proposed random selection method by comparing probabilities