Calculate mean, median and mode for the following data. 12,9,20,25,22,18,10,16,15,11,18
[5 marks]What is average? Give it’s uses and characteristics.
[5 marks]Define Statistics. Give its uses in different fields.
[5 marks]Find Q3, D4 & P65 for the following data. 10,18,22,16,15,16,18,20,16,18,23
[5 marks]Draw Frequency Polygon for the following frequency distribution. Class 10-15 15-20 20-25 25-30 30-35 35-40 40-45 Fi 6 14 25 32 18 11 9
[5 marks]Explain different charts and graphs used in Statistics.
[5 marks]Using the following information compare dispersion of two groups by CV. Group Number Mean s.d. A 20 14.6 2.4 B 30 15.2
[3 marks]Discuss important measures of central tendency.
[5 marks]Calculate mean, median and mode for the following frequency distribution. Class 0-5 5-10 10-15 15-20 20-25 25-30 Fi 3 9 14 11 7
[5 marks]Explain Spearman’s rank correlation method with suitable example.
[5 marks]Fi nd equation of regression line for the data given below. X 1 5 3 2 1 2 7 Y 6 1 0 0 1 2 1
[5 marks]What is correlation? Discuss the main types of correlation.
[5 marks]Find Karl Pearson’s co-efficient of correlation. X 2.0 4.0 1.2 0.4 2.4 Y 5.4 0.9 6.3 1.8 3.6
[5 marks]Write a note on Stratified random sampling method.
[5 marks]What is sampling? Discuss the characteristics of an ideal sample.
[5 marks]Write a note on components of time series.
[5 marks]Find trends by 5 yearly moving averages. Year 2010 2012 2014 2016 2018 2020 2022 2024 Y 18 14 23 11 16 26 9
[12 marks]