Correct Answer

Correct Answer

Wrong Answer

Wrong Answer

3.2. Ascending and Descending Cumulative Frequency Tables and Their Graphical Representation

The table below shows the frequency distribution of the grades of 60 students in an exam. Find the number of failed students, given that the minimum success grade is 30 marks.

Sets0–10–20–30–40–50–Total
Frequency31810815660
  • A39 students
  • B10 students
  • C21 students
  • D31 students
0
correct
0
incorrect
0
skipped