Summary

Xsum %>%
  summary %>%
  round(2) 
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##    0.32    3.39    5.29    6.00    7.93   22.56
Xsum %>%
  sd %>%
  round(2)
## [1] 3.52
Xsum %>%
  `<=`(0.1) %>%
  which %>%
  `[`(Xsum, .) %>%
  round(2)
## named numeric(0)
Xmin <- names(Xsum[which(Xsum == min(Xsum))])
Xmin
## [1] "774"

Plot

학번

  2018 이전 2019 2020 2021 2022 2023 2024
Red 19 43 54 75 35 179 50
Black 19 43 53 79 36 173 53