A population has a mean of 50 and a standard deviation of 18. If a random sample of 64 is taken, what is the probability that the sample mean is each of the following? a. Greater than 51 b. Less than 52 c. Less than 47 d. Between 47.5 and 53.5 e. Between 50.7 and 51.2 Appendix A Statistical Tables (Round the values of z to 2 decimal places, e.g. 15.25. Round your answers to 4 decimal places, e g. 0.2513.) a. P(x > 51) = b. P(x