Sales and Revenue
Let's consolidate acquired knowledge with a practical task!
Note
If you want to multiply each element of the row to a specific value (i.e., not one number for all elements), you need to have the condition: the number of rows of the matrix equals the multiplying vector length satisfied.
Swipe to start coding
You have the selling data for a local furniture store stored in the sellings matrix.
| Month | Sofa | Armchair | Dining table | Dining chair | Bookshelf |
|---|---|---|---|---|---|
| March | 16 | 21 | 30 | 23 | 10 |
| April | 40 | 39 | 13 | 21 | 16 |
| May | 11 | 21 | 36 | 32 | 16 |
And vector of prices named prices.
| Sofa | Armchair | Dining table | Dining chair | Bookshelf |
|---|---|---|---|---|
| 340 | 150 | 115 | 45 | 160 |
Your tasks are:
- Output the total number of items sold each month.
- Transpose of the
sellingsmatrix and reassign the result to thesellingsvariable. - Find out revenue by each good by multiplying
sellingsandprices. Save the result to theincomevariable. - Output the monthly revenues.
- Output the total three months' revenue.
Oplossing
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Completion rate improved to 5.56Sales and Revenue
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Let's consolidate acquired knowledge with a practical task!
Note
If you want to multiply each element of the row to a specific value (i.e., not one number for all elements), you need to have the condition: the number of rows of the matrix equals the multiplying vector length satisfied.
Swipe to start coding
You have the selling data for a local furniture store stored in the sellings matrix.
| Month | Sofa | Armchair | Dining table | Dining chair | Bookshelf |
|---|---|---|---|---|---|
| March | 16 | 21 | 30 | 23 | 10 |
| April | 40 | 39 | 13 | 21 | 16 |
| May | 11 | 21 | 36 | 32 | 16 |
And vector of prices named prices.
| Sofa | Armchair | Dining table | Dining chair | Bookshelf |
|---|---|---|---|---|
| 340 | 150 | 115 | 45 | 160 |
Your tasks are:
- Output the total number of items sold each month.
- Transpose of the
sellingsmatrix and reassign the result to thesellingsvariable. - Find out revenue by each good by multiplying
sellingsandprices. Save the result to theincomevariable. - Output the monthly revenues.
- Output the total three months' revenue.
Oplossing
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Awesome!
Completion rate improved to 5.56single
