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

5.3

and a standard deviation of

1.8

.

Answer parts

(a)dash

(d)

below.

Question content area bottom

Part 1

(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

enter your response here

.

(Round to four decimal places as needed.)