In a recent study on world happiness. participants were asked to evaluate their current lives on a scale from l[ll to '10, where l[ll represents the worst possible life and 10 represents the best possible life. The responses were normally distributed. with a mean at 4.9 and a standard deviation of 1.8. Answer parts (aHd) 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 D. (Round to four decimal places as needed.) (b) Find the probability that a participant's response was between 4 and 6. Some technologies may allow for the computation of the area under the curve between two values, P(4 8) =1, because the probabilities represent the area underneath the entire normal curve. Therefore, P(x > 8) =1 - P(x 8), rounding to four darimal places in both pacos(c) Find the probability that a randomly selected study participant's response was more than 8. Technology can be used to obtain P(x 8) =1, because the probabilities represent the area underneath the entire normal curve. Therefore, P(x > 8) =1 - P(x 8), rounding to four decimal places in both cases. P(x 8) = 1-P(x