q1- For borrowers with good credit scores, the mean debt for revolving and installment accounts is $15,015 (BusinessWeek, March 20, 2006). Assume the standard deviation is $3540 and that debt amounts are normally distributed. What is the probability that the debt for a borrower with good credit is less than $10,000? q2- Television viewing reached a new high when the Nielson Company reported a mean daily viewing time of 7.89 hours per household. Use a normal probability distribution

q1- For borrowers with good credit scores, the mean debt for revolving and installment accounts is $15,015 (BusinessWeek, March 20, 2006). Assume the standard deviation is $3540 and that debt amounts are normally distributed. What is the probability that the debt for a borrower with good credit is less than $10,000? q2- Television viewing reached a new high when the Nielson Company reported a mean daily viewing time of 7.89 hours per household. Use a normal probability distribution

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

q1-

For borrowers with good credit scores, the mean debt for revolving and installment accounts is $15,015 (BusinessWeek, March 20, 2006).

Assume the standard deviation is $3540 and that debt amounts are normally distributed.

What is the probability that the debt for a borrower with good credit is less than $10,000?

q2-

Television viewing reached a new high when the Nielson Company reported a mean daily viewing time of 7.89 hours per household. Use a normal probability distribution with a standard deviation of 2.48 hours to answer the following questions about daily television viewing per household.

What is the probability that a household views television between 2.5 and 5.5 hours a day?

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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