Choose a Formula from the Response List with Where the Positive

question 6

Multiple Choice

Choose a formula from the response list with where the positive and negative ions present carry the same amount of charge.

• A) K₃N
• B) AlF₃
• C) CaSO₄
• D) (NH₄)₂S

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Ease of Learning

A measure of how quickly a person can learn to use a tool, system, or interface effectively.

Expected Counts

The theoretical frequency of occurrences in each category of a contingency table under the assumption of independence in a chi-square test.

Goodness-of-fit Test

A statistical test used to determine how well a statistical model fits a set of observations. It measures the discrepancy between observed values and the values expected under the model in question.

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The level of skill and knowledge in using Statistical Analysis System (SAS) software for statistical analysis.