calculate mode ,median,mean

Question

f more than 10 4 more than 30 6 more than 40 8 more than 50                                                                                               10 more than 60                                                                                                 12 more than 70                                                                                                     14

 

Answer 1

The mode is none, because all the ranges and frequencies are different. The median range is "more than 45" being the average of more than 40 and more than 50. The mean range is 260/6=130/3=43.3. In the frequencies, the mode is none; median is 9; mean is 54/6=9.