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Introduction à R : Partie I

bookData Extraction

Finish the section with practice on abstract local furniture store selling data!

Tâche

Swipe to start coding

You will work with the data below. This data is stored in the store variable.

ItemPriceSold
Sofa34067
Armchair15081
Dining table11579
Bookshelf16042
Kitchen Cabinet7067

Your tasks are:

  1. Add a new column named 'Revenue' with the revenue of each item (multiply 'Price' and 'Sold'). To access columns, use the $ sign.
  2. Using the sum() function, calculate the total number of items sold. Save in items_sold variable and output its value.
  3. Calculate total revenue using sum() function. Save in the total_revenue variable and output its value.
  4. Find out the average price of the sold item - divide total_revenue by items_sold.

Solution

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Section 5. Chapitre 7
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bookData Extraction

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Finish the section with practice on abstract local furniture store selling data!

Tâche

Swipe to start coding

You will work with the data below. This data is stored in the store variable.

ItemPriceSold
Sofa34067
Armchair15081
Dining table11579
Bookshelf16042
Kitchen Cabinet7067

Your tasks are:

  1. Add a new column named 'Revenue' with the revenue of each item (multiply 'Price' and 'Sold'). To access columns, use the $ sign.
  2. Using the sum() function, calculate the total number of items sold. Save in items_sold variable and output its value.
  3. Calculate total revenue using sum() function. Save in the total_revenue variable and output its value.
  4. Find out the average price of the sold item - divide total_revenue by items_sold.

Solution

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Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

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Completion rate improved to 2.27
Section 5. Chapitre 7
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