Each Cone Responds Primarily to a Single Colour

question 93

Multiple Choice

Each cone responds primarily to a single colour. How many cones do normal humans have, and what colours do human cones perceive?

• A) three cones that perceive red, blue, and yellow light
• B) four cones that perceive red, blue, yellow, and green light
• C) three cones that perceive red, blue, and green light
• D) three cones that perceive orange, green, and purple light

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Definitions:

Actual Demand

The real observed demand for a product or service, as opposed to forecasted or estimated demand.

Alpha

In finance, a measure of the active return on an investment compared to a market index; in other contexts, it can signify a beginning or a primary factor.

Recent Periods

Refers to the latest or most current time frames for which data or observations are available.

Moving Averages

A forecasting method that uses an average of the n most recent periods of data to forecast the next period.