Question 7
100 students participated in a survey about usage of social media sites Facebook,
Instagram and YouTube. All of them are using at least one of these sites. It was
found that all who use Instagram also use Facebook. 40 students use YouTube,
30 use Instagram, 8 use all the three sites and 12 use YouTube ONLY. Determine
the number of students who use Facebook ONLY.
Instagram and YouTube. All of them are using at least one of these sites. It was
found that all who use Instagram also use Facebook. 40 students use YouTube,
30 use Instagram, 8 use all the three sites and 12 use YouTube ONLY. Determine
the number of students who use Facebook ONLY.