%0 Journal Article %A %D 2020 %J International Journal of Mathematical Research %@ 2306-2223 %V 9 %N 1 %P 72-80 %T Methods for Estimating Missing Values in Descriptive Time Series Statistics: Novelty and Efficiency under Buys-Ballot %M 10.18488/journal.24.2020.91.72.80 %U http://www.pakinsight.com/archive/24/06-2020/1