find the median of cl 0-1000 1000-2000
Answers
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Step-by-step explanation:
1. What measure of central tendency is used to obtain graphically as the x-coordinate of meeting point of the two ogives for grouped data?
2. The percentage marks obtained by 100 students in an examination are given below: Find median.
Marks 30-35 35-40 40-45 45-50 50-55 55-60 60-65
Frequency 10 16 18 23 18 8 7
3. The median of the following frequency distribution is 35. Find the value of x.
C.I. f
0-10 2
10-20 3
20-30 X
30-40 6
40-50 5
50-60 3
60-70 2
Also find the modal class.
4. Draw the cumulative frequency curve by more than method from the following data:
income Number of persons
0-1000 7
1000-2000 15
2000-3000 35
3000-4000 28
4000-5000 10
5000-6000 5
5. The mean of the following distribution is 18.
Class
interval 11-13 13-15 15-17 17-19 19-21 21-23 23-25
Frequencies 3 6 9 13 f 5 4
Find f.
6. The percentage of marks obtained by 100 students in an examination are given below:
Marks 30-35 35-40 40-45 45-50 50-55 55-60 60-65
Frequency 14 16 18 23 18 8 3
Find the median of the above data.
7. Draw a ‘less than ogive’ for the following data:
Class 1-4 4-7 7-10 10-13 13-16 16-19
Frequency 6 30 40 16 4 4
8. Find the mean, median and the mode of the following frequency distribution.
Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70
frequency 4 5 7 10 12 8 4
9. Find the mean of the following
Class 200-201 201-202 202-203 203-204 204-205 205-206
frequency 13 27 18 10 1 1
10. Find the mean of the following data:
Class 0-10 10-20 20-30 30-40 40-50
frequency 20 24 40 36 20