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. The second quartile is equivalent to the __________
2 / 50
2. Multiple regression is also known as _____ regression
3 / 50
3. A graphical method of showing correlation between two variables is called ________
4 / 50
4. Variables whose values are whole numbers or integers are called ________
5 / 50
5. A graphical method of showing correlation between two variables is called __________
6 / 50
6. Calculate the standard deviation of the date in the table below
7 / 50
7. Out of all measures of dispersion, the easiest one to calculate is_____
8 / 50
8. The first moment about mean is given by [ H_{1}=]
9 / 50
9. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
10 / 50
10. When the correlation coefficient r, equals zero, then __________
11 / 50
11. 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 _______
12 / 50
12. Distributions in which there are only one variable are called _________
13 / 50
13. Compute the harmonic mean of 5, 6 and 7
14 / 50
14. Indicators which reflect the relative changes in the level of certain phenomenon in any given period are ________
15 / 50
15. The degree of randomness of selection would depend upon the process of selecting the items from the _________
16 / 50
16. Analysis of Variance (ANOVA) is a test for equality of _____
17 / 50
17. A logical approach used in an investigation to indicate possible alternatives or choices from which an acceptable solution may be derived is called______
18 / 50
18. The conjectural statement a postulate, or a proposition about an assumed relationship between two or more variables is known as _____
19 / 50
19. Data collected on a particular variable or set of variables over time is called _________
20 / 50
20. Correlation values ranges from _________
21 / 50
21. 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
22 / 50
22. The chi-square goodness-of-fit test is be used to test for _____
23 / 50
23. Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable
24 / 50
24. the most common index numbers are _____
25 / 50
25. 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
26 / 50
26. The following are types of correlation except _________
27 / 50
27. 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
28 / 50
28. Classification of data based on sources gives rise to __________
29 / 50
29. Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________
30 / 50
30. Quantitative variable can be classified into ________
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31. A method that involves conference techniques by which a group of people attempts to find solution for specified problems is known as _______
32 / 50
32. The boundaries separating the items in a given distribution into quarters are called ______
33 / 50
33. When an investigator uses questionnaire to collect data from group of people in a population, such data is called ______data
34 / 50
34. Data collected from CBN website are called ________ data
35 / 50
35. Individual data can also be called ____________ data
36 / 50
36. Under coefficient of correlation, When r = 0 i.e. there is ________ relationship
37 / 50
37. Given the data, 5, 8, 3, 4, 6, 1. Obtain first non-central moment
38 / 50
38. 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____
39 / 50
39. The degrees of freedom for the test statistic for μ when σ is unknown is __________
40 / 50
40. Forecasts concerning the near future are known as ______ forecasts
41 / 50
41. Distributions in which there are only one variable are called ___________
42 / 50
42. The boundaries separating the items in a given distribution into quarters are called ________
43 / 50
43. A summary measure that describes any given characteristic of the population is known as a ________
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44. ___________ refers to the formula or statistic which has been chosen to provide an estimate of the population value
45 / 50
45. Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data
46 / 50
46. The difference between the highest observation and the lowest observation is called ________
47 / 50
47. The second quartile is equivalent to the _________
48 / 50
48. When the correlation coefficient r, equals zero, then __________
49 / 50
49. Compute the harmonic mean of 5, 6 and 7
50 / 50
50. The following are types of correlation except _________
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