STT206

1. The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation xi

2. Classification of data based on sources gives rise to __________

3. Under coefficient of correlation, When r = 0 i.e. there is ________ relationship

4. A logical approach used in an investigation to indicate possible alternatives or choices from which an acceptable solution may be derived is called______

5. Like other quartiles, the median quartile is at what percent mark:_____%

6. Distributions involving two discrete variables are called ________

7. Multiple regression is also known as _____ regression

8. ANOVA can be classified in ________ ways

9.  Quantitative variable can be classified into ________

10. If wale predicts that value of 50kg bag of rice will rise in 2022 based on past year (2016) and present year (2019), wale assumption is based on ____

11.  Correlation values ranges from ________

12. Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it

13. Analysis of Variance (ANOVA) is a test for equality of _____

14.  Consider a set of data on monthly sales of a company�??s product, the mean of which was found to be N240,000; the mode found to be N135,000; and the standard deviation found to be N85,000. Calculate Coefficient of skewness

15. Under correlation coefficient, When r = +1, there is a ________linear relationship

16. The second quartile is equivalent to the _________

17. Data collected on a particular variable or set of variables over time is called _________

18. A graphical method of showing correlation between two variables is called __________

19.  The boundaries separating the items in a given distribution into quarters are called ______

20. Hypothesis testing starts with a statement about population parameters such as _________

21. Consider a set of data on monthly sales of a company’s product, the mean of which was found to be N240,000; the mode found to be N135,000; and the standard deviation found to be N85,000. The Pearson’s No. 1 Coefficient of skewness would be____

22. ANOVA means _______

23.  The second quartile is equivalent to the __________

24. When an investigator uses questionnaire to collect data from group of people in a population, such data is called ______data

25. Correlation values ranges from _________

26. Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts

27. Method of forecasts used to generate the general picture (or trend) behind a set of data or time series is ______________

28. Compute the harmonic mean of 5, 6 and 7

29. Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________

30. Data collected from CBN website are called ________ data

31. The degrees of freedom for the test statistic for μ when σ is unknown is __________

32. Out of all measures of dispersion, the easiest one to calculate is_____

33. Variables whose values are fractional and are points on an internal are called _________

34. Individual data can also be called ____________ data

35.  Any characteristics of an object that is capable of assuming different values is called _______

36. A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop ____

37. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?

38. The following are types of correlation except _________

39. Variables that assume any value within an interval or have the property of infinite divisibility are _____ variables

40. Any characteristics of an object that is capable of assuming different values is called __________

41. A summary measure that describes any given characteristic of the population is known as a ________

42. The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation yi

43.  A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop _________

44. The degree of randomness of selection would depend upon the process of selecting the items from the _________

45.  The boundaries separating the items in a given distribution into quarters are called ________

46. The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation yi

47. Distributions involving two discrete variables are called ___________

48. Purposive samples can be occasionally referred to as ______ samples

49. The first moment about mean is given by [ H_{1}=]

50. When the correlation coefficient r, equals zero, then __________