The ozone data is unimodal but is not very close to a normal distribution as seen in the histogram.• The normal QQ plot also shows that the data is not normally distributed, since the points in the plot donot form a straight line. A data transformation may be necessary.• Using the Trend Analysis tool, you saw that the data exhibited a trend and, once refined, identified thatthe trend would be best fit by a second-order polynomial.• The semivariogram/covariance cloud illustrated that the unusually high semivariogram values arelargely represented by the lines perpendicular to the coast. The analysis using this tool indicates thatthe interpolation model should account for anisotropy.