The Accompanying Table Describes the Probability Distribution for the Number

question 150

Multiple Choice

The accompanying table describes the probability distribution for the number of adults in a certain town (among 4 randomly selected adults) who have a college degree. $$\begin{array} { c | c } \mathrm { x } & \mathrm { P } ( \mathrm { x } ) \\\hline 0 & 0.4096 \\1 & 0.4096 \\2 & 0.1536 \\3 & 0.0256 \\4 & 0.0016\end{array}$$

• A)1.21
• B)0.70
• C)2.00
• D)0.95
• E)0.80

---

Definitions:

S-cam Actuated Brake Shoes

Part of a drum brake system where an S-shaped cam is used to push the brake shoes outwards against the drum to slow or stop the vehicle.

Pair

Two things that are designed or used together or considered in relation to each other, often matching or corresponding in form or function.

Trailer Service Brake Signal

An electrical or air signal from the towing vehicle to the trailer, activating the trailer's service brakes.

Tractor Protection Valve

A safety device in air brake systems on trucks and trailers, designed to preserve air pressure in the tractor’s brakes in the event of a trailer air supply failure.