In a Local Cellular Phone Area, Company a Accounts for 60

question 81

Multiple Choice

In a local cellular phone area, company A accounts for 60% of the cellular phone market, while company B accounts for the remaining 40% of the market. Of the cellular calls made with company
A, 1% of the calls will have some sort of interference, while 2% of the cellular calls with company B
Will have interference. If a cellular call is selected at random and has interference, what is the
Probability that it was with company A?

• A) 0.071
• B) 0.429
• C) 0.571
• D) It cannot be determined.

---

Definitions:

Graph

A visual representation of data or mathematical functions in a coordinate system, often used for easier interpretation or analysis.

Quadratic Formula

A formula that provides the solutions to a quadratic equation ax^2 + bx + c = 0 as x = (-b ± sqrt(b^2 - 4ac))/(2a).

Maximum Height

The highest point or peak that an object or entity can reach or has reached.

Rectangular

Relating to a shape or object with a longer length than width, characterized by right angles and parallel opposite sides.