In a recent study on world happiness, participants were asked to evaluate their current lives on 5 a scale from 0 to 10, where 0 represents the worst possible life and 10 represents the best 6 possible life. The responses were normally distributed, with a mean of 4.6 and a standard deviation of 1.9 Answer parts (a) (d) below. a) Find the probability that a randomly selected study participant's response was less than 1 4 12 13 The probability that a randomly selected study participant's response was less than 4 is (Round to four decimal places as needed.) 15 (b) Find the probability that a randomly selected study participant's response was between 4 and 6 Ha 17 The probability that a randomly selected study participant's response was between 4 and 6 18