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S-MD.6 Warmup M2-072-A11-V04

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

Use the spinner to count Red- and Blue-labeled sectors, convert those counts to probabilities, and locate the bias relative to equal color chances.

Prompt spinner: four equal sectors include three labeled Red and one labeled Blue; the bias verdict is withheld. Open full size
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Four variants of this problem type
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