<prompt> Do data normalization on given data set.1, -1, 0.5, -0.5, 0.8, -0.9, 0.4  <response>: Data normalization rescales values to fit within a specific range, often between 0 and 1.Here is the normalized data for the given input using min-max normalization.Input: 1, -1, 0.5, -0.5, 0.8, -0.9, 0.4Normalized data: 1, 0, 0.75, 0.25, 0.9, 0.05, 0.7The formula used for min-max normalization is x x - min max - min, where x is the original value, min is the minimum value in the data set, max is the maximum value, and x is the normalized value.In this case, min -1 and max 1, so the formula becomes x x 1 2. 