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The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $14. Find the probability that a randomly selected utility bill is (a) less than $69, (b) between $87 and $100, and (c) more than $130. ..... (a) The probability that a randomly selected utility bill is less than $69 is 4 (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $87 and $100 is 4 (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than $130 is 4 (Round to four decimal places as needed.)

The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $14. Find the probability that a randomly selected utility bill is (a) less than $69, (b) between $87 and $100, and (c) more than $130. ..... (a) The probability that a randomly selected utility bill is less than $69 is 4 (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $87 and $100 is 4 (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than $130 is 4 (Round to four decimal places as needed.)

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $14. Find the probability that a randomly selected utility bill is (a) less than $69, (b) between $87 and $100, and (c) more than $130. (a) The probability that a randomly selected utility bill is less than $69 is 4 (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $87 and $100 is 4 (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than $130 is 4 (Round to four decimal places as needed.) er Next M O Type here to search 近
Transcribed Image Text:The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $14. Find the probability that a randomly selected utility bill is (a) less than $69, (b) between $87 and $100, and (c) more than $130. (a) The probability that a randomly selected utility bill is less than $69 is 4 (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $87 and $100 is 4 (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than $130 is 4 (Round to four decimal places as needed.) er Next M O Type here to search 近
In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represent the worst possible life and 10 represents the best possible life. The mean response was 5.5 with a standard deviation of 2.5. (a) What response represents the 87th percentile? (b) What response represents the 58th percentile? (c) What response represents the first quartile? ..... (a) The response that represents the 87th percentile is. (Round to two decimal places as needed.) (b) The response that represents the 58th percentile is (Round to two decimal places as needed.) (c) The response that represents the first quartile is. (Round to two decimal places as needed.) Next Type here to search
Transcribed Image Text:In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represent the worst possible life and 10 represents the best possible life. The mean response was 5.5 with a standard deviation of 2.5. (a) What response represents the 87th percentile? (b) What response represents the 58th percentile? (c) What response represents the first quartile? ..... (a) The response that represents the 87th percentile is. (Round to two decimal places as needed.) (b) The response that represents the 58th percentile is (Round to two decimal places as needed.) (c) The response that represents the first quartile is. (Round to two decimal places as needed.) Next Type here to search
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