Answer the following questions using the z-score chart or by using a spreadsheet. 1. Find the z-score for x = 8 if the mean is 7 and the standard deviation is 2. 2. Find the percentile for x = 8 if the mean is 7 and the standard deviation is.2. 3. For a mean of 20 and standard deviation of 5, find P(X 77). 5. For a mean of 153 and standard deviation of 25, find P(130