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. Under coefficient of correlation, When r = 0 i.e. there is ________ relationship
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2. 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____
3 / 50
3. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____
4 / 50
4. Analysis of Variance (ANOVA) is a test for equality of _____
5 / 50
5. _____________________ provides various types of statistical information of either Qualitative or quantitative nature
6 / 50
6. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
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7. Distributions involving two discrete variables are called ___________
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8. 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 ____
9 / 50
9. Correlation is used to determine the extent at which the variable are correlated is called_________ correlation
10 / 50
10. The chi-square test is not very effective if the sample is _______
11 / 50
11. ANOVA means _______
12 / 50
12. Quantitative variable can be classified into _________
13 / 50
13. The mathematical method of determined the points estimate of ‘a’ and ‘b’ from the available sample points is called ____ method
14 / 50
14. Distributions in which there are only one variable are called _________
15 / 50
15. The measure of the degree of uniformity of observations in a given set of data can be said to be _____
16 / 50
16. Indicators which reflect the relative changes in the level of certain phenomenon in any given period are ________
17 / 50
17. Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________
18 / 50
18. Multiple regression is also known as _____ regression
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19. The first moment about mean is given by [ H_{1}=]
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20. 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
21 / 50
21. When the correlation coefficient r, equals zero, then __________
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22. The following are types of correlation except _________
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23. Classification of data based on sources gives rise to __________
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24. 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 ____
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25. Calculate the variance of the date in the table below
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26. A summary measure that describes any given characteristic of the population is known as a ________
27 / 50
27. ANOVA can be classified in ________ ways
28 / 50
28. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
29 / 50
29. Variables whose values are given as numerical quantities is called _____ variables
30 / 50
30. The boundaries separating the items in a given distribution into quarters are called ________
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31. 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
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32. Calculate the mean of the date in the table below
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33. 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 _________
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34. Forecasts that concern the distant future are _______ forecasts
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35. Variables whose values are fractional and are points on an internal are called _________
36 / 50
36. The degree of randomness of selection would depend upon the process of selecting the items from the _________
37 / 50
37. A graphical method of showing correlation between two variables is called __________
38 / 50
38. The following are measurement scales except _______
39 / 50
39. The degrees of freedom for the test statistic for μ when σ is unknown is __________
40 / 50
40. Quantitative variable can be classified into ________
41 / 50
41. Distributions in which there are only one variable are called ___________
42 / 50
42. _______ is value of the sample statistic which is taken as an approximation of the parameter value
43 / 50
43. In null hypothesis for a Chi-square test, both variables are _____
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44. 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 _______
45 / 50
45. In simple linear regression, the numbers of unknown constants are ______
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46. Calculate the standard deviation of the date in the table below
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47. The second quartile is equivalent to the _________
48 / 50
48. Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts
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49. 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
50 / 50
50. A method that involves conference techniques by which a group of people attempts to find solution for specified problems is known as _______
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