The exhaustive set of X – 3x + 4
> 1, X E R, is
X + 1
(-1,1) U (3,00
[1,1] [3,00)
• (-1,00)
• (3,00)
Marks: +4 / -1
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2
Answer:
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1. The marks of 200 students in a test were recorded as follows:
Marks
10-19
20-29 30 39 40 49 50-59 60-69 70-79
Number of students 7
11
20
57 37
Construct the cumulative frequency table.
Draw the ogive and use it to find
() the median
in the number of students who score more than 35% marks, assume that 'marks' are a continuous
variable
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