Soal SMA · Penerapan · Kesulitan 3/5
A recent study found that students who participated in a peer-tutoring program improved their grades by an average of 15%. If a school implements this program and 80 students participate, what is the expected total improvement in grade points across all participants, assuming each student's grade improvement is independent?
- A.1200
- B.1000
- C.1500
- D.900
Kunci jawaban & pembahasan
Jawaban: 1200
The expected improvement per student is 15% of their grade, but since the question asks for total improvement in grade points and assumes each student's improvement is independent, we multiply the average improvement by the number of students: 80 * 15 = 1200.
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