NDA 2017 Paper 1 | Statistics Question 30 | Mathematics

Consider the following statements :

Statement 1 : Range is not a good measure of dispersion.

Statement 2 : Range is highly affected by the existence of extreme values.

Which one of the following is correct in respect of the above statements?

Both Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1

Both Statement 1 and Statement 2 are correct but Statement 2 is not the correct explanation of Statement 1

Statement 1 is correct but Statement 2 is not correct

Statement 2 is correct but Statement 1 is not correct

NDA 2017 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

If the data are moderately non-symmetrical, then which one of the following empirical relationships is correct?

2 $$\times$$ Standard deviation = 5 $$\times$$ Mean deviation

5 $$\times$$ Standard deviation = 2 $$\times$$ Mean deviation

4 $$\times$$ Standard deviation = 5 $$\times$$ Mean deviation

5 $$\times$$ Standard deviation = 4 $$\times$$ Mean deviation

NDA 2017 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

Data can be represented in which of the following forms ?

1. Textual form

2. Tabular form

3. Graphical form

Select the correct answer using the code given below.

Only 1 and 2

Only 2 and 3

Only 1 and 3

Only 1, 2 and 3

NDA 2017 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

For given statistical data, the graphs for less than ogive and more than ogive are drawn. If the point at which the two curves intersect is P, then abscissa of point P gives the value of which one of the following measures of central tendency?

Median

Mean

Mode

Geometric mean

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