Answered: According to NelGo Inc., the mean…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

According to NelGo Inc., the mean yearly salary of Puerto Ricans living in Orlando is $35,600
with a standard deviation of $7,000. Assume it follows the normal distribution.

a. What is the probability of selecting a Puerto Rican living in Orlando that wins between $30,000
and $40,000?

b. What is the yearly salary that 80% of Puerto Ricans living in Orlando exceed?

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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