In a recent study on worldhappiness, participants were asked to evaluate their current lives on a scale from 0 to10, where 0 represents the worst possible life and 10 represents the best possible life. The responses were normallydistributed, with a mean of 6.3 and a standard deviation of 2.2

Answer Part A:

(a) Find the probability that a randomly selected studyparticipant's response was less than 4. (Round to four decimal places as needed)

How would I go about answering this with a calculator (Casio fx-9860GII)