Individual #nonparametric_statistics  the branch of statistics dealing with variables without making assumptions about the parameters of their distribution
  >part of:  statistics  a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
     >part of:  applied_mathematics__appliedmathematic__applied_math__appliedmath  the branches of mathematics that are involved in the study of of the physical or biological or sociological world
        >part of:  mathematics__math__maths__math  a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement

No statement uses or specializes nonparametric_statistics; click here to add one.