If the Random Variable Z Has a Standard Normal Distribution

question 104

Multiple Choice

If the random variable Z has a standard normal distribution, then P(1.17 ≤ Z ≤ 2.26) is:

• A)0.1091.
• B)0.1203.
• C)0.2118.
• D)0.3944.

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Definitions:

Circadian Rhythm

An internal rhythm that approximates the 24-hour day. See biological clocks.

Cryptochrome

A proteinaceous pigment that strongly absorbs blue light; implicated in resetting the biological clock in plants, fruit flies, and mice.

Rubisco

An enzyme that catalyzes the fixation of atmospheric carbon dioxide during photosynthesis in plants.

Transcription

The process by which the genetic information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA), which then leads to protein synthesis.