In a recent study on world happiness, participants were asked to evaluate their current lives on a
Question:
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 possible life and 10 represents the best possible life. The responses were normally distributed, with a mean of 5.4 and a standard deviation of 2.2. Find the probability that a randomly selected study participant’s response was
(a) Less than 4,
(b) Between 4 and 6, and
(c) More than 8. Identify any unusual events in parts (a)–(c). Explain your reasoning.
Find the indicated probabilities. If convenient, use technology to find the probabilities.
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a Using technology Px 4 Pz 06364 02623 b Using tech...View the full answer
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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9780134683416
7th Edition
Authors: Ron Larson, Betsy Farber
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