How Much Did the Average Surface Temperature Increase During the Twentieth

question 38

Multiple Choice

How much did the average surface temperature increase during the twentieth century?

• A)approximately 0.3°C
• B)approximately 0.6°C
• C)approximately 1.2°C
• D)approximately 2.4°C

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Definitions:

Chi-square Statistic

A measure used in statistics that assesses how well observed data fit with expected data.

Critical Value

A threshold in hypothesis testing that defines the boundaries of the acceptance region and rejection region for test statistics.

Degrees Of Freedom

The number of independent values or quantities that can vary in an analysis without violating any constraints.

Expected Frequencies

The frequencies that are theoretically predicted based on a probability distribution or certain assumptions in statistical analysis.