When studying the simultaneous responses to two categorical questions, we should develop a contingency table.
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Answer: 0
Step-by-step explanation:
Well based on this information, I don't think that this is a valid inference. There isn't enough data to go off of in order to answer this question.
Step-by-step explanation:
2x - 3y = 9
2x + 3y = 3
__________ -
-6y = 6
y = -1
2x - 3y = 9
2x - 3(-1) = 9
2x - (-3) = 9
2x = 12
x = 6
