Z Is a Standard Normal Random Variable

question 8

Multiple Choice

Z is a standard normal random variable. The P -1.20 ≤ Z ≤ 1.50) equals

• A) 0.0483
• B) 0.3849
• C) 0.4332
• D) 0.8181

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Definitions:

DNA

Deoxyribonucleic acid, a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms.

Atmospheric Oxygen

The oxygen gas (O2) present in the Earth's atmosphere, essential for the respiratory processes of most living organisms.

Photosynthesizing Bacteria

Microorganisms that convert light energy into chemical energy through the process of photosynthesis.

Terrestrial Plants

Plants that grow on land, as opposed to aquatic (water-based) or epiphytic (growing on other plants) plants.