R programming

dummy_data <- tibble(f1 = c(F, T, T, T, T, T), f2 = c(F, F, T, F, T, T), answer = c("Python", "Python", "R", "R", "R", "R"))

Using dummy_data above:

1. calculate the prior_prob, prob_f1 and prob_f2 using functions from the `dplyr` package (R programming).