thumb|upright=1.3|right|The normal distribution, a very common probability density, is used extensively in inferential statistics. thumb|upright=1.3|right|Scatter plots and line charts are used in descriptive statistics to show the observed relationships between different variables, here using the Iris flower data set.
th.umb|upright=1.3|right|The normal distribution, a very common probability density, is used extensively in inferential statistics. thumb|upright=1.3|right|Scatter plots and line charts are used in descriptive statistics to show the observed relationships between different variables, here using the Iris flower data set