Question: Suppose you have a dataframe, df, with two datetime columns in them:firstPurchaseTime and lastPurchaseTime. These columns are a time stamp that measures time to the

Suppose you have a dataframe, df, with two datetime columns in them:firstPurchaseTime and lastPurchaseTime. These columns are a time stamp that measures time to the second. What would be the outcome for the following line of code? df$timePassed = as.numeric(df$lastPurchaseTime - df$firstPurchaseTime) A new column of data the represents the amount of time that has passed in terms of: 1 point seconds minutes hours days years

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