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A data set has 20 elements. A second data set of 20ciements is obtained by adding 7 to each element of thefirst set. A third data set of 20 elements is obtained bymultiplying each element of the second data set by 3.The median of the third data set is 63. What is the medi-an of the first data set?A.7B.14C.21D.196E.210

User Danushka Gunawardena
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1 Answer

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5 votes

The first step to answer this question is to divide the median by 3.


(63)/(3)=21

Now, substract 7 from the result:


21-7=14

The answer is B. 14.

User Musannif Zahir
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