📊 R Programming
Q. How do you calculate the percentage of total sales for each category in dplyr?
  • (A) mutate(percentage_sales = sales / sum(sales) * 100)
  • (B) calculate_percentage(sales)
  • (C) summarize(percentage = sum(sales) / total_sales * 100)
  • (D) percent_of_total(sales)
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✅ Correct Answer: (A) mutate(percentage_sales = sales / sum(sales) * 100)

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