Xerosis Is a Condition Caused by a Deficiency of What

question 38

Multiple Choice

Xerosis is a condition caused by a deficiency of what vitamin?

• A)vitamin A
• B)vitamin C
• C)vitamin D
• D)vitamin E

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Definitions:

Standard Normal Random Variable

A normal distribution with a mean of 0 and a standard deviation of 1, used as a basis for comparison in statistics.

z

In statistics, often refers to a z-score, which measures the number of standard deviations a data point is from the mean of a distribution.

Standard Normal Random Variable

A random variable with a mean of zero and a standard deviation of one, following a normal distribution.

Probability

A numeric scale between 0 and 1 that quantifies how likely an event is to take place.