Which of the following adds marginal sums to an existing table ?
A. par()
B. prop.table()
C. addmargins()
D. All of the mentioned
Answer:A
Which of the following adds marginal sums to an existing table ?
A. par() B. prop.table() C. addmargins() D. All of the mentioned
Explanation:prop.table() computes proportions from a contingency table. 2. Which of the following lists names of variables in a data.frame ?