The Sum of the Observed Frequencies for All the Rows

question 2

Multiple Choice

The sum of the observed frequencies for all the rows of a test for independence must equal

• A)the sum of the expected frequencies for all the rows.
• B)the total N for the experiment.
• C)the sum of the observed frequencies for all the columns.
• D)all of the above.

---

Definitions:

Seeing Colors

The ability of the eye and brain to interpret various wavelengths of light as different colors, a process involving the retina's cone cells.

Cones

Photoreceptor cells in the retina of the eye that function best in bright light and enable color vision.

Lens

A curved piece of glass or other transparent materials used to refract light, focus images, and correct optical imperfections.

Transparent Outer Membrane

Refers typically to the cornea, the clear, dome-shaped surface that covers the front of the eye and contributes to the eye's focusing power.