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 mathematical method of determined the points estimate of ‘a’ and ‘b’ from the available sample points is called ____ method
2 / 50
2. the most common index numbers are _____
3 / 50
3. 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
4 / 50
4. 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
5 / 50
5. A method that involves conference techniques by which a group of people attempts to find solution for specified problems is known as _______
6 / 50
6. Variables whose values are fractional and are points on an internal are called _________
7 / 50
7. The boundaries separating the items in a given distribution into quarters are called ________
8 / 50
8. 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 _______
9 / 50
9. Any characteristics of an object that is capable of assuming different values is called __________
10 / 50
10. Distributions involving two discrete variables are called ________
11 / 50
11. Calculate the mean of the date in the table below
12 / 50
12. A graphical method of showing correlation between two variables is called __________
13 / 50
13. Forecasts that concern the distant future are _______ forecasts
14 / 50
14. _______ is value of the sample statistic which is taken as an approximation of the parameter value
15 / 50
15. 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
16 / 50
16. Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable
17 / 50
17. The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is _______
18 / 50
18. The following are measurement scales except ________
19 / 50
19. Correlation values ranges from _________
20 / 50
20. The following are measurement scales except _______
21 / 50
21. Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________
22 / 50
22. Like other quartiles, the median quartile is at what percent mark:_____%
23 / 50
23. 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____
24 / 50
24. A graphical method of showing correlation between two variables is called __________
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 yi
26 / 50
26. The difference between the highest observation and the lowest observation is called ________
27 / 50
27. A graphical method of showing correlation between two variables is called ________
28 / 50
28. Individual data can also be called ____________ data
29 / 50
29. Quantitative variable can be classified into _________
30 / 50
30. Under coefficient of correlation, When r = 0 i.e. there is ________ relationship
31 / 50
31. Distributions in which there are only one variable are called ___________
32 / 50
32. The following are types of correlation except _________
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. 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 _________
35 / 50
35. Variables whose values are whole numbers or integers are called ________
36 / 50
36. The chi-square goodness-of-fit test is be used to test for _____
37 / 50
37. Distributions involving two discrete variables are called __________
38 / 50
38. Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it
39 / 50
39. Purposive samples can be occasionally referred to as ______ samples
40 / 50
40. When the correlation coefficient r, equals zero, then __________
41 / 50
41. ANOVA can be classified in ________ ways
42 / 50
42. In simple linear regression, the numbers of unknown constants are ______
43 / 50
43. Correlation is used to determine the extent at which the variable are correlated is called_________ correlation
44 / 50
44. Under correlation coefficient, When r = +1, there is a ________linear relationship
45 / 50
45. The payoffs associated with each possible outcome in a decision problem should be listed in ______ table
46 / 50
46. The degrees of freedom for the test statistic for μ when σ is unknown is __________
47 / 50
47. Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data
48 / 50
48. 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
49 / 50
49. Compute the harmonic mean of 5, 6 and 7
50 / 50
50. The measure of dispersion that ensures highest degree of reliability is ___________
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