Question

please answer this question and remember that this is given in cumilative frequency change this into frequency show me how the cf is changed in f plssss and find median
I request the person which answer this question can be done in the notebook so that it will be easy ​

Answer 1

Answer:

Step-by-step explanation:

Marks. C. F. F. F

0-10. 3. 3. 3

10-20. 12. 12-3=9. 9

20-30. 27. 27-12=15. 15

30-40. 57. 57-27=30. 30

40-50. 75. 75-57=18. 18

50-60. 80. 80-75=5. 5