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Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R).

Assertion (A) : Kurtosis is the description of direction of hump of the curve of distribution of data.
Reason (R) : Normal probability curve is characterized by the mean, median and mode being at the same point.
In the context of the above two statements, which one of the following is correct ?
Codes :

  • A.(A) is right, but (R) is wrong.
  • B.(A) is wrong, but (R) is right.
  • C.Both (A) and (R) are right and (R) is the correct explanation of (A).
  • D.Both (A) and (R) are right, but (R) is not the correct explanation of (A).

Answer: B

The assertion is wrong and the reason is right. Kurtosis describes the peakedness or flatness of a distribution, and not the direction of the hump, which is skewness.

In a normal probability curve the mean, median and mode coincide, so (R) is right. The options that accept (A) are wrong.

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