5. A text file with instructions for R is called? a. A function b. A comment c. A script d. A record Short Answer 1. Calculate the value of result2 a stris.Exn) 'data. Treme! 1704 obs. of 6 variables: 6 country Factor w/ 142 levels "Afghanistan",..: 1111111111... continent: Factor w/ S levels "altic Americas": 3 3 3 3 3 3 3 3 3 3 $ year int 1952 1957 1962 1967 1972 1977 1982 1987 1992 1997 ... $ di LeExp num 28.8 30.3 32 34 36.1 $ pop :int 8425333 9240934 10267083 11537966 13079460 14880372 12881816 13867957 16317921 22227415 $ sudopexsar: num 779 821 853 836 740 How many variables are quantitative? . 4. Consider the following data frame: > str(Life Exp) data. Irame: 1704 obs. of 6 variables: $ country Eactor w/ 142 levels "Afghanistan",..: 1111111111 ... $ continent: Factor w/ S levels "African Americas.. : 3 3 3 3 3 3 3 3 3 3 6 year int 1952 1957 1962 1967 1972 1977 1982 1987 1992 1997 ... 6 lifeExp num 28.8 30.3 32 34 36.1 Spop int 6425333 9240934 10267083 11537966 13079460 14880372 12881816 13867957 16317921 22227415 $ Render: num 779 821 853 836 740 .. What's the right command to convert the variable year into a factor? 5. Write down the tidyverse equivalent of: Life Exp > Write down the tidverse equivalent of: Life Exp