Explanation:The general operation here is a combination of splitting a data frame into separate pieces defined by a variable or group of variables (group_by()), and then applying a summary function across those subsets (summarize()). 7. The ______ operator allows you to string operations in a left-to-right fashion.
A. %>%>
B. %>%
C. >%>%
D. All of the mentioned
Answer:A
Explanation:The general operation here is a combination of splitting a data frame into separate pieces defined by a variable or group of variables (group_by()), and then applying a summary function across those subsets (summarize()). 7. The ______ operator allows you to string operations in a left-to-right fashion.
A. %>%> B. %>% C. >%>% D. All of the mentioned
Explanation:The pipeline operator %>% is very handy for stringing together multiple dplyr functions in a sequence of operations. 8. There is an SQL interface for relational databases via the _______ package.