The Variance of a Sample of 121 Observations Equals 441

question 57

Multiple Choice

The variance of a sample of 121 observations equals 441. The standard deviation of the sample equals

• A)11.
• B)21.
• C)1.91.
• D)231.

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Definitions:

Allison WT

Refers to a series of automatic transmissions designed by Allison Transmission, tailored for a wide range of commercial vehicle applications.

Mercedes Benz AGS

An Automated Gear Shift system developed by Mercedes Benz, providing automated transmission shifting for enhanced driving comfort and efficiency.

Rail-select

A part of the gear selection mechanism in manual transmissions, allowing the driver to choose between different gear rails for engaging specific gears.

Gear-select Ball Screws

A component in some vehicle gearboxes that uses a rotary motion to move gears into place smoothly and precisely.