Out of 11 bihs in a hospital, 5 babies weighed over 2.5 kg and 5 weighed less than 2.5 kg. What value dose 2.5 represent -
Ans. is 'c' i.e., Median average Median o Is an average, to obtain it the data is first arranged in an ascending or descending order of magnitude and then the value of the middle observation is located which is called median. o In the question 5 value are below 2.5 and 5 value are above 2.5, so if we arrange the data in increasing or decreasing order 2.5 will represent the middle one and can be taken as median average of given data.
Geometric average
Arithmetic average
Median average
Mode