Find the indicated probability.
-The brand name of a certain chain of coffee shops has a 53% recognition rate in the town of Coffleton. An executive from the company wants to verify the recognition rate as the company is interested in opening a
Coffee shop in the town. He selects a random sample of 10 Coffleton residents. Find the probability that the
Number that recognize the brand name is not 4.
A) 0.000851
B) 0.0905
C) 0.821
D) 0.179

Question

Quizplus · Accepted Answer

The probability that the number of people who recognize the brand name is not 4 can be found by calculating 1 minus the probability that exactly 4 people recognize it. Using the binomial probability formula, calculate the probability for exactly 4 recognitions and subtract from 1. The result is approximately 0.821.

Find the Indicated Probability