MAT 133:3.2 WS 3 3. The following histogram represents a data set with a mean of 50 and a standard deviation of 3.5. Is it appropriate to use the Empirical Rule to approximate the proportion of the data between 43 and 57? If so, find the approximation. If not, explain. 20 15 - 10 50 53 4. Which distribution has more variability as measured by the standard deviation? (Note: both data sets have a mean of "3") Circle One and Explain. Histogram of Data Set A Histogram of Data Set B 20 20 15 15 Frequency 10 Frequency 10 Data Set A Data Set B