A sample of size 20 will be drawn from a population with mean 7 and standard deviation 6.(a) Is it appropriate to use the normal distribution to find probabilities for x? ?(b) If appropriate find the probability that x? will be greater than 6.(c) If appropriate find the 40th percentile of x?.It is appropriate to use the normal distribution to find probabilities for x?.The probability that x? will be greater than 6 isThe 40th percentile of x? isIt is not appropriate to use the normal distribution to find probabilities for x?.