- A School Has 100 Students And S Teachers In The First Period Each Student Is Taking One Class And Each Teacher Is Tea 1 (221.38 KiB) Viewed 104 times
A school has 100 students and S teachers. In the first period, each student is taking one class, and each teacher is tea
-
answerhappygod
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am
A school has 100 students and S teachers. In the first period, each student is taking one class, and each teacher is tea
A school has 100 students and S teachers. In the first period, each student is taking one class, and each teacher is teaching one class. The enrollments in the classes are 50, 20, 20, 5. and 5. Let be the average value obtained if a teacher is picked at random and the number of students in their class is noted. Let s be the average value obtained if a student is picked at random and the number of students in their class, including that student, is noted. What is 1 - s? (A) -18.5 (B)-13.5 (C) 0 (D) 13.5 (E) 18.5