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. Out of all measures of dispersion, the easiest one to calculate is_____
2 / 50
2. The difference between the highest observation and the lowest observation is called ________
3 / 50
3. Calculate the variance of the date in the table below
4 / 50
4. When an investigator uses questionnaire to collect data from group of people in a population, such data is called ______data
5 / 50
5. Variables whose values are given as numerical quantities is called _____ variables
6 / 50
6. ANOVA can be classified in ________ ways
7 / 50
7. The measure of the degree of uniformity of observations in a given set of data can be said to be _____
8 / 50
8. Data collected from CBN website are called ________ data
9 / 50
9. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____
10 / 50
10. Distributions involving two discrete variables are called __________
11 / 50
11. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
12 / 50
12. Correlation is used to determine the extent at which the variable are correlated is called_________ correlation
13 / 50
13. 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____
14 / 50
14. The following are measurement scales except _______
15 / 50
15. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
16 / 50
16. Calculate the mean of the date in the table below
17 / 50
17. 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
18 / 50
18. Forecasts that concern the distant future are _______ forecasts
19 / 50
19. Purposive samples can be occasionally referred to as ______ samples
20 / 50
20. Variables that assume any value within an interval or have the property of infinite divisibility are _____ variables
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 xi
22 / 50
22. Compute the harmonic mean of 5, 6 and 7
23 / 50
23. _______ is value of the sample statistic which is taken as an approximation of the parameter value
24 / 50
24. Calculate the standard deviation of the date in the table below
25 / 50
25. Quantitative variable can be classified into _________
26 / 50
26. Range of 8, 12, 5, 15 is ______
27 / 50
27. Compute the harmonic mean of 5, 6 and 7
28 / 50
28. Any characteristics of an object that is capable of assuming different values is called __________
29 / 50
29. A logical approach used in an investigation to indicate possible alternatives or choices from which an acceptable solution may be derived is called______
30 / 50
30. Variables whose values are fractional and are points on an internal are called _________
31 / 50
31. Variables whose values are fractional and are points on an internal are called _________
32 / 50
32. Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________
33 / 50
33. The first moment about mean is given by [ H_{1}=]
34 / 50
34. A graphical method of showing correlation between two variables is called ________
35 / 50
35. Distributions involving two discrete variables are called ________
36 / 50
36. Like other quartiles, the median quartile is at what percent mark:_____%
37 / 50
37. ___________ refers to the formula or statistic which has been chosen to provide an estimate of the population value
38 / 50
38. Multiple regression is also known as _____ regression
39 / 50
39. The degrees of freedom for the test statistic for μ when σ is unknown is __________
40 / 50
40. Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data
41 / 50
41. Distributions in which there are only one variable are called ___________
42 / 50
42. In null hypothesis for a Chi-square test, both variables are _____
43 / 50
43. 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
44 / 50
44. The second quartile is equivalent to the _________
45 / 50
45. Data collected on a particular variable or set of variables over time is called _________
46 / 50
46. Correlation values ranges from _________
47 / 50
47. When the correlation coefficient r, equals zero, then __________
48 / 50
48. Distributions in which there are only one variable are called _________
49 / 50
49. Data collected on a particular variable or set of variables over time is called _________
50 / 50
50. Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts
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