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 4.9 and a standard deviation of 2.5​(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.)

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Asked Oct 27, 2019

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 4.9 and a standard deviation of 2.5

​(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.)
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