Problem 32 of 7
Determine independence from the two-way table data total 200; A=80, B=60, A and B=30.
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compute marginal and joint probabilities.
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Use the same table total for marginal and joint probabilities.
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Solution
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1. Compute P(A), P(B), and P(A and B) from the table.
2. Compute P(A)P(B).
3. Compare with the joint probability.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using row totals inconsistently as the overall denominator for the product test.