[Retracted] Computer Aided Teaching System Based on Artificial Intelligence in Football Teaching and Training

Table 3

Usage of players' mobile smart terminals.

Time slot	Number of people	Percentage (%)
Half an hour or less	7	16.28
Half an hour to one hour	9	20.93
One to two hours	11	25.58
Two to three hours	14	32.56
Three to four hours	1	2.33
More than four hours	1	2.33