X Is a Normally Distributed Random Variable with a Mean

question 12

Multiple Choice

x is a normally distributed random variable with a mean of 8 and a standard deviation of 4.The probability that x is between 1.48 and 15.56 is

• A) 0.0222
• B) 0.4190
• C) 0.5222
• D) 0.9190

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Definitions:

Polychaetes

Marine annelid worms known for their bristled segments, diverse in marine environments.

Parapodia

Paired, lateral appendages found on each segment of polychaetes and some other annelids, used for locomotion and sometimes respiratory functions.

Radula

A rasping, tongue-like organ found in many molluscs, used for feeding by scraping or cutting food before ingestion.

Earthworms

Terrestrial invertebrate worms belonging to the phylum Annelida, known for their role in aerating soil and breaking down organic matter.