Using dplyr functions (i.e., filter, mutate ,select, summarise, group_by etc. ) and “murder” dataset (available in dslab R package) and write appropriate R syntax to answer the followings:
a. Calculate regional total murder excluding OH, AL, and AZ (Hint: filter(! abb %in% x) # here x is the exclusion vector)
b. Display the regional population and regional murder numbers.
c. How many states are there in each region? (Hint: n ())
d. What is Ohio’s murder rank in the Northern Central Region (Hint: use rank(), row_number())
e. How many states have murder number greater than its regional average (Hint: nrow() )
f. Display 2 least populated states in each region (Hint: slice_min() ) Use pipe %>% operator for all the queries.
Just need R Language commands for a,b,c,d,e,f.
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