Reference no: EM13933147
1. (a) Explain how tables, graphs and charts help in the effective presentation of data.
(b) What are the common methods for grouping and presentation of data?
(c) Explain the need and usefulness of diagrammatic representation of statistical data. What are the different types of diagram you know? ·
2. (a) Mention the advantages ofgraphic presentation of statistical data.
(b) What are the general rules for graphing the data?
3. As per Railway Budget how railways spend each rupee is given below. Draw a pie chart to represent the data. "Every one rupee the Railways spend, a hefty 3 paise is accounted for by staff wages and other allowances. 16 praise for depreciation reserve fund, 13 praise each for fuel and miscellaneous, 7 paise for dividend, 8 paise for stores and 23 paise for development works".
4. The following table gives the average month ly earnings of the mill workers in a certain city:
Momhly earnings No. of worken Monthly earnings (Rs). No. of worken
800-850 21 1200-1250 36
850-900 29 1250-1300 45
900-950 19 1300-1350 27
950-1000 39 1350-1400 48
1000-1050 43 1400-1550 21
1050-1100 94 1450-1500 12
1100-1 150 73 1500- 1550 9
1150-1200
(i) Draw ogives by less than and more than methods for the data given below.
(ii) Find the number of workers whose wages lie between Rs. 1.180 and Rs. 1.480.
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: Mention the advantages ofgraphic presentation of statistical data. What are the general rules for graphing the data? Explain how tables, graphs and charts help in the effective presentation of data.
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