Imagine we have the data frame below and we have named it df in R. worker...
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Imagine we have the data frame below and we have named it "df" in R. worker wage state 1 11 2 9 3 20 4 40 5 5 CA CA AZ AZ OR In the R console I type: mean(wage) But receive the error "object 'wage' not found". What is the issue? O The correct function to use here is the sum() function, not mean() O I need to convert the wage variable to numeric O Need to specify mean(wage,df) O Need to specify df$wage Imagine we have the data frame below and we have named it "df" in R. worker wage state 1 11 2 9 3 20 4 40 5 5 CA CA AZ AZ OR In the R console I type: mean(wage) But receive the error "object 'wage' not found". What is the issue? O The correct function to use here is the sum() function, not mean() O I need to convert the wage variable to numeric O Need to specify mean(wage,df) O Need to specify df$wage
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Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
Posted Date:
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