Question

find the median of the following class intervals:4-8, 9-13, 14-18, 19-23, 24, 28frequency 5, 7, 11, 8, 4​

Answer 1

Answer:

9

Step-by-step explanation:

Interval                                 X               F          

4-8= 4+8/2                          6               5              

9-13= 9+13/2                        11            7                

14-18= 14+18/2                      16         11                

19-23= 19+23/2                    21        8                

24-28= 24+28/2                  26       4              

median in a group data is n+1/2

where n is Frequency.

35(Total number of frequency)+1/2

36/2= 18th

go to the frequency and start adding the numbers until you get 18 but in these table the 18th falls between 7 and 11; which becomes 7+11/2= 9