Exercise

Global incomes: Dispersion

A quantile is a measure of dispersion created by dividing a frequency distribution of a DataFrame into even groups. You can return values at the given quantile q of a DataFrame df with the command df.quantile(q); likewise, supplying a list as q will return a value for each given quantile.

Here, you will continue your analysis of global income distribution using two measures of dispersion: the standard deviation, or square root of variance, and the interquartile range (IQR).

pandas has been imported as pd, and the income DataFrame from the previous exercise is in your workspace.

Instructions

100 XP
  • Using the appropriate functions, calculate the mean of income per capita as mean and the standard deviation as std.
  • Without using .quantile(), calculate and print the upper and lower bounds of an interval of one standard deviation around the mean in a list bounds:
    • subtract std from mean as the first element
    • add std to mean as the second element
  • Using .quantile() and a list of two appropriate decimal values, calculate and print the first and the third quartile of 'Income per Capita' as quantiles. Do the values match?
  • Calculate and print the IQR, iqr, using the simple subtraction expression you learned in the video.