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he probability that a randomly selected study part cipant's response was less than 4. ability that a randomly selected study participant's response was less than 4 is (Round to four decimal places as needed.) the probability that a randomly selected study participant's response was between 4 and 6. ability that a randomly selected study participant's response was between 4 and 6 is (Round to four decimal places as needed.) he probability that a randomly selected study participant's response was more than 8. pability that a randomly selected study participant's response was more than 8 is (Round to four decimal places as needed.) fy any unusual events. Explain your reasoning. Choose the correct answer below. The events in parts (a) and (c) are unusual because their probabilities are less than 0.05. The events in parts (a), (b), and (c) are unusual because all of their probabilities are less than 0.05. There are no unusual events because all the probabilities are greater than 0.05. The event in part (a) is unusual because its probability is less than 0.05.

he probability that a randomly selected study part cipant's response was less than 4. ability that a randomly selected study participant's response was less than 4 is (Round to four decimal places as needed.) the probability that a randomly selected study participant's response was between 4 and 6. ability that a randomly selected study participant's response was between 4 and 6 is (Round to four decimal places as needed.) he probability that a randomly selected study participant's response was more than 8. pability that a randomly selected study participant's response was more than 8 is (Round to four decimal places as needed.) fy any unusual events. Explain your reasoning. Choose the correct answer below. The events in parts (a) and (c) are unusual because their probabilities are less than 0.05. The events in parts (a), (b), and (c) are unusual because all of their probabilities are less than 0.05. There are no unusual events because all the probabilities are greater than 0.05. The event in part (a) is unusual because its probability is less than 0.05.

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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In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represents the worst pe life. The responses were normally distributed, with a mean of 5.7 and a standard deviation of 2.3. Answer parts (a)-(d) below. (a) Find the probability that a randomly selected study part cipant's response was less than 4. The probability that a randomly selected study participant's response was less than 4 is (Round to four decimal places as needed.) (b) Find the probability that a randomly selected study participant's response was between 4 and 6. The probability that a randomly selected study participant's response was between 4 and 6 is (c) Find the probability that a randomly selected study participant's response was more than 8. The probability that a randomly selected study participant's response was more than 8 is (d) Identify any unusual events. Explain your reasoning. Choose the correct answer below. (Round to four decimal places as needed.) (Round to four decimal places as needed.) OA. The events in parts (a) and (c) are unusual because their probabilities are less than 0.05. OB. The events in parts (a), (b), and (c) are unusual because all of their probabilities are less than 0.05. OC. There are no unusual events because all the probabilities are greater than 0.05. OD. The event in part (a) is unusual because its probability is less than 0.05.
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 represents the worst pe life. The responses were normally distributed, with a mean of 5.7 and a standard deviation of 2.3. Answer parts (a)-(d) below. (a) Find the probability that a randomly selected study part cipant's response was less than 4. The probability that a randomly selected study participant's response was less than 4 is (Round to four decimal places as needed.) (b) Find the probability that a randomly selected study participant's response was between 4 and 6. The probability that a randomly selected study participant's response was between 4 and 6 is (c) Find the probability that a randomly selected study participant's response was more than 8. The probability that a randomly selected study participant's response was more than 8 is (d) Identify any unusual events. Explain your reasoning. Choose the correct answer below. (Round to four decimal places as needed.) (Round to four decimal places as needed.) OA. The events in parts (a) and (c) are unusual because their probabilities are less than 0.05. OB. The events in parts (a), (b), and (c) are unusual because all of their probabilities are less than 0.05. OC. There are no unusual events because all the probabilities are greater than 0.05. OD. The event in part (a) is unusual because its probability is less than 0.05.
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