Question

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​

Answer 1

Answer:

7

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