The Time for a Professor to Grade a Homework in Statistics

question 44

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 less than 16 minutes to grade?

• A) 0.1401
• B) 0.5910
• C) 0.7734
• D) 0.9131

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Definitions:

Midterm Election

Elections held midway through the term of the President of the United States, used to elect various members of congress, including all of the House of Representatives and one-third of the Senate.

Republicans

Members of the Republican Party, one of the two major political parties in the United States, traditionally emphasizing free market policies, limited government, and strong national defense.

Congress

The national legislative body of the United States, consisting of two chambers: the Senate and the House of Representatives, responsible for making federal laws.

Federal Government

The national government of a federal state, which shares sovereignty with its sub-national entities and possesses its own powers and responsibilities distinct from those of state governments.