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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,

Posted: Wed May 11, 2022 10:07 am
by answerhappygod
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 5.9 and a
standard deviation of 2.5. Answer
parts (a)–​(d) below.
​(a) Find the probability that a randomly selected
study​ participant'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.)