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Subject Code : LITTLE FLOWERS PUBLIC SR. SEC. SCHOOL, SET-B, , 030 ANNUAL EXAMINATION (2021-22), UBJECT : ECONOMICS M.M.40, , , , CLASS ~ XI, PART - A [STATISTICS - 17 MARKS], , , , TIME : 2 HE, , , , , , , , , , , , , , , , , Ql. The coefficient of variation of a series is 64. The standard deviation is 16, what will, be the value of arithmetic mean? (2), Q2. Explain importance of Index Numbers, (Any 2 poin (2), OR, Construct price index number for 2020 based on 2011 using s aggre, ethod., Commodity __Price in 2011(%) Price in 2020(?), A | 155 195;, B 90, Cc 185 |, D 260 T5850, 90 - 80, protien, Q3. ain the seeps in construction of Index Numbers. (3), Q4. t of correlation from the following data: (5), , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Q5. Calculate standard deviation and mean from the following data: - (5), "~~ PART-B- MICROECONOMICS-23 Marks a, Q6. Define the following: - (2), (b) Perfect Competition, Q7. Giving reason, find whether the following statements are true or false: - (2), (a) When total revenue is maximum, marginal revenue will be minimum., (6) When marginal revenue becomes negative, total revenue will ri, Q8. Calculate marginal product from the following data: (2), oflabour «(Od |, Total Product(Units) Lo 4, ECONOMICS — XI (SET-B) PAGENO.1, , ANNUAL EXAMINATION (2021-22)