1.What is the correct output of the command substr(‘Programming Language’,5,10)?
(a) ‘rammin’ (b) ‘ramming’
(c) ‘amming’ (d) Error
2. What is the correct output of the command strsplit(‘Programming Language’,
‘ ‘)?
(a) ‘Programming Language’ (b) ‘Programming’ ‘Language’
(c) Programming Language (d) Error
3. Which one of the following GUIs was developed by Dr. Graham Williams?
(a) Rcmdr (b) Deducer
(c) Rattle (d) JGR
4. Which one of the following GUIs is used with the Java-based R console (JGR)?
(a) Rcmdr (b) Deducer
(c) RKWard (d) Rattle
5. What do you mean by analytical data processing? What are the advantages of business
analytics?
6. What is the difference between read.csv() and read.table() function?
7. How are packages in R read using the library() function?
8. What is the difference between the library() and data() functions?