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. 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
2 / 50
2. Compute the harmonic mean of 5, 6 and 7
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3. Forecasts that concern the distant future are _______ forecasts
4 / 50
4. Data collected from CBN website are called ________ data
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5. The payoffs associated with each possible outcome in a decision problem should be listed in ______ table
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6. The boundaries separating the items in a given distribution into quarters 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. 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
9 / 50
9. When the correlation coefficient r, equals zero, then __________
10 / 50
10. 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
11 / 50
11. Distributions involving two discrete variables are called ________
12 / 50
12. The following are types of correlation except _________
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13. A summary measure that describes any given characteristic of the population is known as a ________
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14. The difference between the highest observation and the lowest observation is called ________
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15. Any characteristics of an object that is capable of assuming different values is called __________
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16. Multiple regression is also known as _____ regression
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17. Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it
18 / 50
18. A logical approach used in an investigation to indicate possible alternatives or choices from which an acceptable solution may be derived is called______
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19. Distributions involving two discrete variables are called __________
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20. Analysis of Variance (ANOVA) is a test for equality of _____
21 / 50
21. Variables whose values are given as numerical quantities is called _____ variables
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22. ___________ refers to the formula or statistic which has been chosen to provide an estimate of the population value
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23. 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 ____
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24. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
25 / 50
25. Any characteristics of an object that is capable of assuming different values is called _______
26 / 50
26. The following are types of correlation except _________
27 / 50
27. _____________________ provides various types of statistical information of either Qualitative or quantitative nature
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28. Individual data can also be called ____________ data
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29. Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts
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30. The degree of randomness of selection would depend upon the process of selecting the items from the _________
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31. Correlation values ranges from _________
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32. Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data
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33. Correlation values ranges from ________
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34. Distributions in which there are only one variable are called ___________
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35. The difference between the highest observation and the lowest observation is called ________
36 / 50
36. Calculate the standard deviation of the date in the table below
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37. Forecasts concerning the near future are known as ______ forecasts
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38. The chi-square goodness-of-fit test is be used to test for _____
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39. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____
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40. Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________
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41. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
42 / 50
42. In null hypothesis for a Chi-square test, both variables are _____
43 / 50
43. the most common index numbers are _____
44 / 50
44. Calculate the variance of the date in the table below
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45. ANOVA can be classified in ________ ways
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46. A graphical method of showing correlation between two variables is called ________
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47. Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable
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48. Distributions in which there are only one variable are called __________
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49. Calculate the mean of the date in the table below
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50. Indicators which reflect the relative changes in the level of certain phenomenon in any given period are ________
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