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Updated on September 20, 2023

DATA MINING TUTORIAL

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JAVASCRIPT INTERVIEW QUESTIONS

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When a constant figure is added to each individual score, what will be the effect on the mean value?
1. Mean value will be added by the same figure
2. Mean value will be subtracted by the same figure
3. Mean value will be multiplied by the same figure
4. Mean value will be divided by the same figure

— is used whenever the relative importance of the items in a series differs 

(a)Simple arithmetic mean 

(b) Weighted arithmetic mean 

(c)Geometric mean 

(d)None

 Median is a —– average

(a) Mathematical 

(b) Positional 

(c) Both 

(d) None

—- divides the data into 4 equal parts

(a) Quartiles 

(b) Mean 

(c) Median 

(d)Range 

Weighted averages are used in the calculation of 

(a)death rate 

(b)birth rate 

(c)Both 

(d)None

— are known as averages of first order 

(a) Measures of central tendency 

(b) Measures of dispersion 

(c) Averages 

(d) None

—– is a geometric method of measuring variability 

 (a) Lorenz Curve 

(b)Geometric curve 

(c) Both 

(d) None 

Which of the following measures of variability is used when the statistics having the greatest stability is sought?
1. Mean Deviation
2. Standard Deviation
3. Quartile Deviation
4. Range

Consumer price index numbers are prepared for 

(a) All people 

(b) Factor employees 

(c) Well defined section of people 

(d) Farmers

— means lack of symmetry 

(a)Skewness 

(b) Kurtosis 

(c) Range 

(d) None

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