China Naming Network - Auspicious day query - Guangming Middle School will hold the "Campus Guinness Challenge". To this end, the school randomly selected 50 boys and 50 girls and asked "your favorite challenge project".
Guangming Middle School will hold the "Campus Guinness Challenge". To this end, the school randomly selected 50 boys and 50 girls and asked "your favorite challenge project".
(1) Girls' favorite event is: 50-15-9-7 =10.
Boys like table tennis best: 50× (1-8%-10%-14%-28%) = 20 people;
(2) The auxiliary bar chart is shown on the right:
.
(3)400×28%+450×950= 193,
A: The total number of students who like badminton in this school is 193.