Statistics · NDA previous year questions

2021 27 questions

1. Q902021 · 18 Apr 2021

   The following tables gives the frequency distribution of number of peas per pea pod of 198 pods: $$\begin{array}{lccccccc}\text{Number of peas}& 1& 2& 3& 4& 5& 6& 7\\ \text{Frequency}& 4& 33& 76& 50& 26& 8& 1\end{array}$$ What is the median of this distribution?

   1. A.3
   2. B.4
   3. C.5
   4. D.6
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   Answer: A

2. Q912021 · 18 Apr 2021

   If ${\lim }_{x\to a}\frac{a^x-x^a}{x^x-a^a}=-1$, then what is the value of a?

   1. A.-1
   2. B.0
   3. C.1
   4. D.2
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   Answer: C