E-PolyLearning

6. The type of cumulative frequency distribution in which the class intervals are added in top to bottom order is classified as
a. variation distribution
b. less than type distribution
c. more than type distribution
d. marginal distribution
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Answer: (b).less than type distribution

7. The data based on workers salary is as 2500, 2700, 2600, 2800, 2200, 2100, 2000, 2900, 3000, 2800, 2200, 2500, 2700, 2800, 2600 and number of classes desired is 10 then width of class interval is
a. 400
b. 300
c. 100
d. 200
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Answer: (c).100

8. The largest value is 60 and the smallest value is 40 and the number of classes desired is 5 then the class interval is
a. 20
b. 4
c. 25
d. 15
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Answer: (b).4

9. The summary and presentation of data in tabular form with several non-overlapping classes is referred as
a. nominal distribution
b. ordinal distribution
c. chronological distribution
d. frequency distribution
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Answer: (d).frequency distribution

10. The classification method in which upper and lower limits of interval is also in class interval itself is called
a. exclusive method
b. inclusive method
c. mid-point method
d. ratio method
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Answer: (b).inclusive method

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