Page 1 : L QUESTION PAPER- 1 (FOR PRACTICE), , , , JPER MODE, , Max. Marks: {9, , , , , , , , Time: 3.15 Hours of, , » sheets and statistical tables will be supplied on request., , , , Scientific calculators may be used., , All working steps should be clearly shown E ||, SECTION-A, , I. Answer any TEN of the following questions., , 1, Write a characteristic of statistics., , What is the term ‘Strata’ in sampling?, , Define frequency of a frequency distribution., , (ii), , (iii), , 10x 1=49, , 4, Define width of a class., 5. What is false base line used graphs?, 6., , , , 6. Which graphs is used to locate positional averages?, . If the product of two numbers is 36, then find the Geometric mean., , 8. Ina symmetrical distribution, if mean = 68, then what is the value of Median?, , 9. If r, =-1, interpret the same., , 10. Whatis relation between correlation and the two standard deviations, in regression coefficient, , of yonx? \, 11. Define complementary event? os, 12. If E (a) =a, then find E (3/2). = 4/>., SECTION-B, , II. Answer any TEN of the following questions. 10 x 2=20, 13. How the word statistics originated?, , 14. What are the sources fo: Secondary data?, , 15. Define the terms title and table number., , 16. Mention two essential rules of graphs and diagrams., , 17. Find the harmonic mena of 2 and 4,, , 18. Name the types of skewness,, 19. Show by a graph for correlation co-efficient > 0.5., 20. ee student calculated b. =8 and b,, = 0.3, are these values are correct if not give reason for, 2 ae ee Mules coefficient of association?, iret. A i probability,, , ) b,c, d, ¢,}, if A=(a, b), find P(A)., , 24. IfV (X) = 2.5, then find V (4x - 3)., , Super Companion Q-Bank, , 306