In a recent study on world happiness, participants were asked to evaluatetheir current lives on a scale from 0 to 10, where 0 represents the worstpossible life and 10 represents the best possible life. The responses werenormally distributed, with a mean of 6.1 and a standard deviation of 2.4.Answer parts (a)-(d) below.(a) Find the probability that a randomly selected study participant's responsewas less than 4.The probability that a randomly selected study participant's response wasless than 4 is (Round to four decimal places as needed.)

Answered: Image /qna-images/answer/1846d904-5f4a-48f8-8df2-e29ec5b46b23.jpg

Answered: In a recent study on world happiness,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 67.8 inches and a standard deviation of 3.0 inches. A study participant is randomly selected. Complete parts (a) through (d) below. (a) Find the probability that a study participant has a height that is less than 65 inches. The probability that the study participant selected at random is less than 65 inches tall is (Round to four decimal places as needed.) (b) Find the probability that a study participant has a height that is between 65 and 70 inches. The probability that the study participant selected at random is between 65 and 70 inches tall is (Round to four decimal places as needed.) (c) Find the probability that a study participant has a height that is more than 70 inches. The probability that the study participant selected at random is more than 70 inches tall is (Round to four decimal places as needed.) (d) Identify any unusual events. Explain your reasoning. Choose the…
In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 69.4 inches and a standard deviation of 3.0 inches. A study participant is randomly selected. Complete parts (a) through (d) below. (a) Find the probability that a study participant has a height that is less than 66 inches. The probability that the study participant selected at random is less than 66 inches tall is (Round to four decimal places as needed.) (b) Find the probability that a study participant has a height that is between 66 and 71 inches. The probability that the study participant selected at random is between 66 and 71 inches tall is | (Round to four decimal places as needed.) (c) Find the probability that a study participant has a height that is more than 71 inches. The probability that the study participant selected at random is more than 71 inches tall is . (Round to four decimal places as needed.) (d) Identify any unusual events. Explain your reasoning. Choose…
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In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 67.7 inches and a standard deviation of 2.0 inches. A study participant is randomly selected. Complete parts (a) through (d) below. (a) Find the probability that a study participant has a height that less than 67 inches. The probability that the study participant selected at random is less than 67 inches tall is 0.3632. (Round to four decimal places as needed.) (b) Find the probability that a study participant has a height that is between 67 and 70 inches. The probability that the study participant selected at random is between 67 and 70 inches tall is (Round four decimal places as needed.)
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In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 68.4 inches and a standard deviation of 4.0 inches. A study participant is randomly selected. Complete parts (a) through (d) below.

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