21. A data analyst writes the following code in a script and gets an error. What is wrong with their code?
filter(flipper_length_mm == 200) %>%
summarize(mean = mean(body_mass_g)) %>%
- They are using too many functions.
- The last line should not have a pipe operator.
- The first line should have a pipe operator before penguins.
- They are using the wrong characters for the pipe operator.