CSEC Mathematics · January 2009 · Paper 2 · Question 7(c)
The pass mark for the test is 47.
Use your graph to determine the number of students who passed the test.
The mark scheme is shown once you've answered.
Practise this questionOther parts of this question
- 7(a)Copy and complete the table to show the cumulative frequency for the distribution.[2 marks]
- 7(b)(i)Using a scale of 1 cm to represent 5 marks on the horizontal axis and 1 cm to represent 5 students on the vertical axis, draw the cumulative frequency curve…[5 marks]
- 7(b)(ii)What assumption have you made in drawing your curve through the point (0,0)?[1 mark]
- 7(d)What is the probability that a student chosen at random had a mark less than or equal to 30?[2 marks]
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