in a population of Yorkshire hogs, sample statistics indicate the following: Average Days to 250 lbs. (Days)= 160 Variance of Days = 9 Use the graphing paper attached to illustrate the normal distribution of Days in this population. Draw the bell shaped curve, label the mean, label the parameters showing where 68%, 95% and 99% of the population would be

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.