Watch the video and then complete parts (a) through (c) below. Click here to watch the video. Standard deviation The Empirical Rule states that when data is normally distributed, about 68% of all...

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Extracted text: Watch the video and then complete parts (a) through (c) below. Click here to watch the video. Standard deviation The Empirical Rule states that when data is normally distributed, about 68% of all values of a normal curve lie within 1 standard deviation of the mean (in both directions), about 95% lie within 2 standard deviations of the mean, and about 99.7% lie within 3 standard deviations of the mean. E Click the icon to view the Table of Areas Under the Standard Normal Curve. 68% i 95% 99.7% (a) Use the Empirical Rule to find the percentage of area under the normal curve between z= 0 and z = 1, as shown in the diagram. Hint: Due to the symmetry of the Normal Distribution, the percentage of data between z= 0 and z= 1 is half the percentage between z = -1 and z= 1. The percentage is %. (Type an integer or decimal rounded to the nearest tenth.) x z=1