Q1 of 145 Page 410

Which of the following is not a measure of central tendency?

Mean, median and mode are a measure of central tendency but range of a set of data is the difference between the largest and smallest values.

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21

If the mean of the following distribution is 27, find the value of p.



















Class



0 - 10



10 - 20



20 - 30



30 - 40



40 - 50



Frequency



8



P



12



13



10


 22

Calculate the missing frequency from the following distribution, it being given that the median of the distribution is 24.



















Age (in years)



0 - 10



10 - 20



20 - 30



30 - 40



40 - 50



Number of persons



5



25



?



18



7


 2

Which of the following cannot be determined graphically?

 3

Which of the following measures of central tendency is influenced by extreme values?