X Is a Normally Distributed Random Variable with a Mean

question 54

Multiple Choice

x is a normally distributed random variable with a mean of 12 and a standard deviation of 3. The probability that x equals 19.62 is

• A) 0.000.
• B) 0.0055.
• C) 0.4945.
• D) 0.9945.

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Definitions:

Microvilli

Tiny, finger-like projections from the surface of some cells, increasing their surface area for absorption.

Goblet Cells

Specialized epithelial cells found in the respiratory and intestinal tracts, which secrete mucus to trap irritants and protect mucous membranes.

Columnar Epithelium

A type of epithelium that consists of single or multiple layers of column-shaped cells.

Merocrine Secretion

A type of exocrine secretion where cells excrete their substances by exocytosis without losing any cellular material.