\nIt is time consuming<\/td>\n | It takes less time<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Question 18. \nMention the types of classification of data. \nAnswer: \nThe types of classification of data are: \n(a) Quantitative classification \n(b) Qualitative classification \n(c) Chronological classification \n(d) Spatial classification.<\/p>\n <\/p>\n Question 19. \nWhether the data represented by a component bar diagram can also be represented by a pie chart? Explain. \nAnswer: \nA pie diagram is also a component diagram, but unlike a bar diagram, here it is a circle whose area is proportionally divided among the components it represents. So the data represented by a component bar diagram can also be represented by a pie chart. The only requirement being that absolute values of the components have to converted into percentages before can be used for a pie diagram.<\/p>\n Question 20. \nCalculate the value of the mean from the following figures \nX: 5, 7, 9, 12, 11, 8, 7, 15, 25. \nAnswer: \nx = \\(\\frac{\\Sigma X}{N}=\\frac{99}{9}\\) = 11<\/p>\n Question 21. \nInterpret the values of \u2018r\u2019 as 1, -1 and 0. \nAnswer: \nWhen r = 1, it shows there is perfect positive correlation between two variables \nWhen r = 1, it shows that there is perfect negative correlation between two variables When r = 0, it shows that there is no relationship between the two variables.<\/p>\n Question 22. \nMention the name of any four statistical tools. \nAnswer: \nThe most important statistical tools are the measures of central tendency, dispersion, correlation, bar diagrams, pie chart, histograms, etc.<\/p>\n VI. Answer any five of the following questions in four sentence each. ( 2 \u00d7 5 = 10 )<\/span><\/p>\nQuestion 23. \nList out the important export goods of India before Independence. \nAnswer: \nThe important export goods of India before independence were raw silk, cotton, wool, sugar, indigo, jute, etc.<\/p>\n <\/p>\n Question 24. \nWhat are the social factors that trigger and perpetuate poverty? \nAnswer: \nThe social factors that trigger and perpetuate poverty are as follows:<\/p>\n |