What is statistics? Explain importance and limitations of statistics.
[5 marks]Write a Note: Types of Graphs
[5 marks]The following table shows the number of infant per family. Calculate mean by using given data. No. of 0 1 2 3 4 Infants No. Of 4 8 23 8 6 Families
[3 marks]Draw histogram and frequency polygon on the same graph paper for the following frequency distribution. Class 15-20 20-25 25-30 30-35 35-40 40-45 Frequency 20 30 50 40 25
[10 marks]Calculate the median from the given information. Absent 0 1 2 3 4 Days Absent 8 12 18 9 5 1 Students
[5 marks]From the following information calculate Range and Relative Range. Monthly 35000 40000 50000 75000 100000 120000 Income(Rs.) No. of 3 21 30 19 6 Employees
[5 marks]Write advantages and disadvantages of Quartile Deviation.
[5 marks]Write a Note: Dispersion
[5 marks]The run scored by batsman in last seven matches are: 52, 58, 40, 60, 54, 38, 48. Calculate Standard Deviation and Variance.
[5 marks]Write a Note: Sampling Methods(any 2)
[5 marks]State advantages & dis advantages of sampling.
[5 marks]Find the trend by four year moving average from the given information. Month March April May June July Aug. Sep. Oct. Nov. Dec. Sales(Rs.) 5 3 7 6 4 8 9 10 8 9
[5 marks]Explain the characteristics of a good sample.
[5 marks]Calculate coefficient correlations by Karl Pearson’s method. x 25 38 30 28 34 40 36 y 65 75 68 70 72 79 75
[5 marks]From the given information calculate regression line y on x. X 5 7 5 12 8 Y 8 9 10 15 10
[6 marks]Calculate coefficient correlations by Spearman's rank Correlation method. Group A B C D E Rank X 2 5 1 4 Rank Y 4 1 5 2
[3 marks]Describe Components of time series in detail.
[5 marks]