2. Organize the data for Proft Margin in a grouped frequency distribution using -30 to -26 as the class limits of the first class. Make a relative frequency histogram. Describe the shape of the histogram Predict, from the shape of the histogram, whether the mean is greater than the median or vice-versa. Calculate the mean and the median Was your prediction correct? 2. Organize the data for Proft Margin in a grouped frequency distribution using -30 to -26 as the class limits of the first class. Make a relative frequency histogram. Describe the shape of the histogram Predict, from the shape of the histogram, whether the mean is greater than the median or vice-versa. Calculate the mean and the median Was your prediction correct