An Aptitude Test Has a Mean Score of 80 and a Standard

question 85

Multiple Choice

An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What raw score corresponds to the 70th percentile?

• A) 77.4
• B) 83.5
• C) 82.6
• D) 76.5

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Definitions:

Stomata

Tiny openings or pores in plant leaves and stems that control gas exchange for photosynthesis and respiration.

Photosynthetic Component

Part of a cell or organism that is involved in photosynthesis, the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.

Chlorophyll Molecules

The green pigments found in the chloroplasts of plants, algae, and certain bacteria, crucial for photosynthesis by capturing light energy.

Enzymes

Natural molecules that substantially quicken the velocity of almost every chemical reaction occurring in cells.