In a recent study on world happiness, participants were asked to evaluate their current liveson a scale from 0 to 10, where 0 represents the worst possible life and 10 represents thebest possible life.. The responses were normally distributed, with a mean of 6.1 and astandard deviation of 2.4. Answer parts (a)-(d) below....(a) Find the probability that a randomly selected study participant's response was less than4.The probability that a randomly selected study participant's response was less than 4 is0.1907. (Round to four decimal places as needed.)(b) Find the probability that a randomly selected study participant's response was between 4and 6.The probability that a randomly selected study participant's response was between 4 and 6 is0.2924. (Round to four decimal places as needed.)(c) Find the probability that a randomly selected study participant's response was more than8.The probability that a randomly selected study participant's response was more than 8 is(Round to four decimal places as needed.)

The mean is 6.1 and the standard deviation is 2.4.

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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For a standardized psychology examination intended for psychology majors, the historical data show that scores have a mean of 515 and a standard deviation of 175. The grading process of this year's exam has just begun. The average score of the 35 exams graded so far is 526. What is the probability that a sample of 35 exams will have a mean score of 526 or more if the exam scores follow the same distribution as in the past? Carry your intermediate computations to at least four decimal places: Round your answer to at least three decimal places. Submit Assignment 2021 McGraw Hil LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility US Continue V O 8:19 hp esc 2# 8. 3 4. t 00

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