a) 8 workers
b) 41 years old
c) 39 years old
How many workers are over 40 years old ?
There are 4 rows in the diagram, from which, all the workers of last two rows are over 40 years old.
Ages of workers in last two rows are 41, 42, 44, 46, 47, 48, 53, 59
Total no. of workers over age 40 is 8
What is the median age of an office worker ?
The ages of workers are 23, 25, 34, 35, 38, 38,39, 41, 42, 44, 46, 47, 48, 53, 59
The median will be the 8th term ,i.e. 41 years old
What is the new median ?
If oldest (59 yrs age) worker retires and is replaced by a 24 years old.
Then the ages are 23, 24, 25, 34, 35, 38, 38,39, 41, 42, 44, 46, 47, 48, 53, 59
The new median will be 8th term, i.e. 39 years old
Learn more about median here :
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