Question: Consider this R code and output and explain what this means. [ 1 ] NA There is 1 NA in billing billing is not an

Consider this R code and output and explain what this means.[1] NA
There is 1 NA in billing
"billing" is not an object in R
There is at least one missing value in "billing"
The mean() function is not available in this version of R
Consider this R code and output and explain what

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