Q10 of 43 Page 293

Select a proper option (a), (b), (c) or (d) from given options and write in the box given on the right so that the statement becomes correct:

If — Z = 3 and + Z = 45, then M =


Solving the given equations,




⇒


⇒


⇒


Put this value in ,


24 – Z = 3


⇒ Z = 24 – 3


⇒ Z = 21


By empirical relationship, we can write


Mode = 3 (Median) – 2 (Mean)


⇒


⇒


⇒


Putting in the given values, we can



⇒


⇒


⇒ M = 23


Thus, option (d) is correct.

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