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
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1. 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____
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2. Analysis of Variance (ANOVA) is a test for equality of _____
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3. Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it
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4. When the correlation coefficient r, equals zero, then __________
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5. When the correlation coefficient r, equals zero, then __________
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6. Variables whose values are fractional and are points on an internal are called _________
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7. Distributions involving two discrete variables are called __________
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8. The first moment about mean is given by [ H_{1}=]
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9. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____
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10. 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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11. The following are types of correlation except _________
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12. Classification of data based on sources gives rise to __________
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13. The chi-square goodness-of-fit test is be used to test for _____
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14. 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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15. Quantitative variable can be classified into ________
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16. The following are measurement scales except ________
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17. Multiple regression is also known as _____ regression
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18. Data collected from CBN website are called ________ data
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19. Forecasts concerning the near future are known as ______ forecasts
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20. The second quartile is equivalent to the __________
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21. ANOVA can be classified in ________ ways
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22. A graphical method of showing correlation between two variables is called __________
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23. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
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24. Quantitative variable can be classified into _________
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25. Variables whose values are whole numbers or integers are called ________
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26. the most common index numbers are _____
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27. Any characteristics of an object that is capable of assuming different values is called __________
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28. The measure of dispersion that ensures highest degree of reliability is ___________
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29. Data collected on a particular variable or set of variables over time is called _________
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30. The difference between the highest observation and the lowest observation is called ________
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31. Individual data can also be called ____________ data
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32. Distributions involving two discrete variables are called ________
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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. The second quartile is equivalent to the _________
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35. 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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36. A graphical method of showing correlation between two variables is called __________
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37. The payoffs associated with each possible outcome in a decision problem should be listed in ______ table
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38. 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
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39. Compute the harmonic mean of 5, 6 and 7
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40. Calculate the variance of the date in the table below
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41. ANOVA means _______
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42. Under correlation coefficient, When r = +1, there is a ________linear relationship
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43. In null hypothesis for a Chi-square test, both variables are _____
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44. Purposive samples can be occasionally referred to as ______ samples
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45. Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data
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46. Forecasts that concern the distant future are _______ forecasts
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47. 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 _______
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48. Any characteristics of an object that is capable of assuming different values is called _______
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49. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
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50. When an investigator uses questionnaire to collect data from group of people in a population, such data is called ______data
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