The age of 30 workers in a factory are as follows
AgeNo. of workers245257268274286
(i) Find the mean,median and mode for the above ungrouped data. [4 MARKS]
Concept: 1 Mark
Application: 1 Mark each
AgeNo. of workersfx245120257175268208274108286168
Mean
=∑fx∑f=(24×5)+(25×7)+(26×8)+(27×4)+(28×6)5+7+8+4+6
=77930
=25.97
AgeNo of WorkersC.F245525712268202742428630
Median =(n2)th observation+(n2+1)th observation2
=15th observation+16th observation2
=26+262
=26
Highest frequency = 8
Mode = 26