High Temperatures in a Certain City for the Month of August

question 49

Multiple Choice

High temperatures in a certain city for the month of August follow a uniform distribution over the interval 64°Fto 92°F. What is the probability that a randomly selected August day has a high temperature that exceeded69°F?

• A) 0.8214
• B) 0.1786
• C) 0.4423
• D) 0.0357

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Definitions:

Null Hypothesis

A statement in statistical hypothesis testing representing the assumption of no effect or no difference, serving as the default or baseline against which alternatives are tested.

Independent Variables

Variables in an experiment or model that are controlled or changed to test their effects on dependent variables.

Observed Values

The actual values that are measured or collected during an experiment or survey.

Predicted Values

In statistics, these are the estimated outcomes based on a regression model or other predictive model.