0f 1 pts Select all answers that are TRUE about the Normal Distribution and its associated curve. If a given observation has a E-score of exactlyr 0, this observation must be equal to the mean of the distribution. The total area underneath the normal distribution curve is 'L If a given observation has a E-score of -'.l, that observation must be one standard deviation greater than the mean. The standard normal distribution has a mean of 1 and a standard deviation of 0. The total area underneath the curve equals 0.5