- Turning on time be x
- Turning of time be y
If 19:00<=x<=19:30 and 4:00<=y<=6:00
Total time difference
[tex]\\ \sf\longmapsto 6:00-19:30=10:30[/tex]
- In order to mange time between 9--10 hours 30 minutes should be deducted in pairs from starting and ending .By which net deduction i e x-y=0
- Total starting options=x=15
- Total ending options=x=15
- Sample space=|S|=15+15=30
- E=1
Probability=
[tex]\\ \sf\longmapsto P(E)=\dfrac{1}{30}[/tex]
