STT206

Category:STT206

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ATTENTION:

Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.

Good luck!

STT206

1 / 50

1. If the points on the scatter diagram show no tendency either to increase together or decrease together the value of r will be close to _______

2 / 50

2. Scale that has all the properties of the nominal, ordinal and interval scales including the additional property of having an absolute zero point is known as ____ scale

3 / 50

3. Variables whose values are whole numbers or integers are called ________

4 / 50

4. The measure of the degree of uniformity of observations in a given set of data can be said to be _____

5 / 50

5. 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

6 / 50

6. Distributions in which there are only one variable are called ___________

7 / 50

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

8 / 50

8.  Correlation values ranges from ________

9 / 50

9. ANOVA can be classified in ________ ways

10 / 50

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

11 / 50

11. Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable

12 / 50

12. 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 ____

13 / 50

13. ___________ refers to the formula or statistic which has been chosen to provide an estimate of the population value

14 / 50

14. 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

15 / 50

15. A method that involves conference techniques by which a group of people attempts to find solution for specified problems is known as _______

16 / 50

16. 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____

17 / 50

17. 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 ____

18 / 50

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

19 / 50

19. the most common index numbers are _____

20 / 50

20. Calculate the standard deviation of the date in the table below

21 / 50

21. Distributions in which there are only one variable are called __________

22 / 50

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

23 / 50

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

24 / 50

24. Distributions involving two discrete variables are called __________

25 / 50

25. The following are types of correlation except _________

26 / 50

26. Indicators which reflect the relative changes in the level of certain phenomenon in any given period are ________

27 / 50

27. The difference between the highest observation and the lowest observation is called ________

28 / 50

28. Multiple regression is also known as _____ regression

29 / 50

29. Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data

30 / 50

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

31 / 50

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

32 / 50

32. Forecasts concerning the near future are known as ______ forecasts

33 / 50

33.  The following are measurement scales except ________

34 / 50

34.  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

35 / 50

35. The following are types of correlation except _________

36 / 50

36. A graphical method of showing correlation between two variables is called ________

37 / 50

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

38 / 50

38. 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

39 / 50

39. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____

40 / 50

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

41 / 50

41. Data collected from CBN website are called ________ data

42 / 50

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

43 / 50

43. Variables whose values are given as numerical quantities is called _____ variables

44 / 50

44. In simple linear regression, the numbers of unknown constants are ______

45 / 50

45. Individual data can also be called ____________ data

46 / 50

46. The measure of dispersion that ensures highest degree of reliability is ___________

47 / 50

47.  Quantitative variable can be classified into ________

48 / 50

48. The chi-square goodness-of-fit test is be used to test for _____

49 / 50

49.  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

50 / 50

50. The payoffs associated with each possible outcome in a decision problem should be listed in ______ table

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