Find the Variance of the Probability Distribution for the Histogram

question 243

Multiple Choice

Find the variance of the probability distribution for the histogram:

• A) Var (
• X) = 3.67
• B) Var (
• X) = 1.61
• C) Var (
• X) = 3.3
• D) Var (
• X) = 1.86

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Definitions:

Ocular Lens

The lens closest to the eye in a microscope or telescope, through which the viewer looks to magnify the image formed by the objective lens.

Objective Lens

The part of a microscope or telescope that is closest to the object being observed, focusing light and creating an initial image.

Oil-Immersion Lens

A microscope lens designed to be used with a drop of oil between the lens and the slide, improving resolution by reducing light refraction.

Fine Focus Knob

A control mechanism on microscopes used to make precise adjustments to the focus, sharpening the image of the specimen.