Automobiles Traveling on a Road with a Posted Speed Limit

question 125

Multiple Choice

Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following is a frequency distribution of speeds. The standard deviation of this distribution is the closest to ____.

• A) 5.35
• B) 6.81
• C) 9.54
• D) 10.25

---

Definitions:

Private Methods

Methods that are accessible only within the class in which they are defined.

Static Methods

Functions in a class that are declared with the static modifier and can be called without creating an instance of the class.

Polymorphism

A programming concept that allows objects of different classes to be treated as objects of a common superclass.

Base Class

The parent class in a hierarchy from which other classes inherit methods and properties.