Assuming a normal distribution, a standard deviation of 1, and a mean of O, determine three different bounding value pairs (Xow Xhigh) that bound 90% of the population. State the probability that a given measurement will fall within 0, 1.96, 3+ of the population mean associated with the measurement. For a very large set of data, the measured mean is found to be 100 with a standard deviation of 10. Assuming the data to be normally distributed, determine the range centered on the mean within which 66.3% of the data are expected to fall.