  Recently, an alternative measure of uncertainty called cumulative residual
extropy (CREX) was proposed by Jahanshahi et al. (2019). In this paper, we
consider uncertainty measures of minimum ranked set sampling procedure with
unequal samples (MinRSSU) in terms of CREX and its dynamic version and we
compare the uncertainty and information content of CREX based on MinRSSU and
simple random sampling (SRS) designs. Also, using simulation, we study on new
estimators of CREX for MinRSSU and SRS designs in terms of bias and mean square
error. Finally, we provide a new discrimination measure of disparity between
the distribution of MinRSSU and parental data SRS.
