The Time for a Professor to Grade a Homework in Statistics

question 54

Multiple Choice

The time for a professor to grade a homework in statistics is normally distributed with a mean of 12.6 minutes and a standard deviation of 2.5 minutes. What is the probability that randomly selected homework will require more than 12 minutes to grade?

• A) 0.8023
• B) 0.5948
• C) 0.6664
• D) 0.5040

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Definitions:

Federal Government

The national government of a federal state, which shares power with sub-national entities such as states or provinces, and is responsible for areas like defense, foreign policy, and currency.

Tax Proportion

The relationship between the amount of tax levied on an entity and its income, assets, or the value of a transaction.

State Legislatures

State Legislatures are the legislative bodies of individual states in the United States, responsible for making state laws, budget decisions, and, in some cases, appointing state officials.

Philadelphia Convention

The gathering in 1787 that resulted in the drafting of the United States Constitution, marking a pivotal moment in American history and the formation of the U.S. federal government.