A normal distribution has a mean of 110 and a standard deviation of 4. Find the z-score for a data value of 109. Round to two decimal places For a standard normal distribution, find: P(z>c)=0.8658 Find c rounded to two decimal places. About 5 of the area under the curve of the standard normal distribution is between z=1.114 and z=1.114 (or within 1.114 standard deviations of the mean). For a standard normal distribution, find: P(0.09.