Homework Answers
The answer is 
The calculations follow:
Here is the data in tabular form:-
| Number of Laptops (Xi) | Frequency (fi) | Xi*fi |
| 0 | 25 | 0 |
| 1 | 4 | 4 |
| 2 | 5 | 10 |
| 3 | 11 | 33 |
| 4 | 2 | 8 |
| 5 | 3 | 15 |
| Sum | 50 | 70 |
Now the formula for calculating the average number of laptops is given by:
Please let me know in the comments if anything is unclear. I will reply ASAP!
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