[填空题]
The tables below show thhk5/ zox+m f0agtc4xry4) .jde grip x hja(bm3),jb/so g3:m nkr1rstrength of volunteer, measured in kilogram-force/jm,om:) s( r bnrj1ag3bxhk3 (kgf) with a dynamometer, at various times of a certain day starting at midnight.
1.Draw the scatter plot on the axes provided below and describe it.
2. Find an appropriate model for the volunteers grip strength S in terms of hours since midnight h .
3. Using your model, find the average grip strength of the volunteer.
4. Use your model to predict the volunteers qrip strenath at 15: 00 .≈ kgf
