Given the box plot showing the number of hours 220 people spent at a computer on a weekend
Where, 6 hours is the lower quartile of the box plot,
The formula for the lower quartile is
[tex]\text{Lower quartile}=\frac{N}{4}[/tex]
Where, N is the number of people, i.e N = 220
Substitute for N into the formula for the lower quartile
[tex]\text{Lower quartile}=\frac{N}{4}=\frac{220}{4}=55\text{ people}[/tex]
Since the lower quartile represents the number of people who spent less than 6 hours
The number of people who spent more than 6 hours will be
[tex]=220-55=165\text{ people}[/tex]
Hence, the answer is 165 (last option)
