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:

Adrenal Cortex

The outer layer of the adrenal glands, which produces essential hormones such as cortisol, aldosterone, and androgens.

Paracrine Secretion

A form of cell signaling in which the target cell is close to the signal-releasing cell, involving substances that exert their effects only on neighboring cells.

Interstitial Fluid

The fluid that surrounds the cells in tissues, providing nutrients and removing waste.

Neighboring Cells

Cells that are situated close to each other, often sharing a similar function or contributing to the same biological process.