## ----include = FALSE---------------------------------------------------------- knitr::opts_chunk$set(collapse = TRUE, comment = "#>") ## ----eval=FALSE--------------------------------------------------------------- # # tutorizeR: mcq, hints=Inspect the grouping variable|Summarise by program # activity |> # dplyr::group_by(program) |> # dplyr::summarise( # mean_hours = mean(study_hours), # .groups = "drop" # )