Question

· In a college there are 500 students in junior College 5% school less than 25 marks 68 score from 26 to 30 marks 30% score from 31 to 35 marks 70 score from 36 to 40 marks 20% score from 41 to 45 marks and the rest score 46 and above marks what is the median marks.

Answer 1

Answer:

median marks = 36.5

Step-by-step explanation:

5 % of 500 = 25

30% of 500 = 150

20% of 500 = 100

                                                        Cumulative

Less than 25          25                     25

26  - 30                   68                     93

31  - 35                     150                    243

36 - 40                     70                      313

41 - 45                     100                      413

46 and above           87                      500

250 lies between 243 - 313

Median lies in 36 - 40  

Estimated Median = m  =  L + [ (N/2 – F) / f ]C

36  + [ (250 - 243 )/70 ]*5

= 36  + 0.5

= 36.5

median marks = 36.5

 

Answer 2

Answer:

classes should be continuous in order to get the correct answer