Question: 5 We have a data frame with 3 columns named sub, cond, and score. The variable mis assigned: m

5 We have a data frame with 3 columns named "sub", "cond", and "score." The variable mis assigned: m<-tapply(dat$score, list(dat$sub,dat$cond), mean) What is m 2 pts O The grand mean score O A long-format data frame of mean scores O A vector of mean scores O A wide-format matrix of mean scores

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