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. ___________ refers to the formula or statistic which has been chosen to provide an estimate of the population value
3 / 50
3. In null hypothesis for a Chi-square test, both variables are _____
4 / 50
4. Correlation values ranges from _________
5 / 50
5. Purposive samples can be occasionally referred to as ______ samples
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6. Any characteristics of an object that is capable of assuming different values is called _______
7 / 50
7. The boundaries separating the items in a given distribution into quarters are called ______
8 / 50
8. Data collected from CBN website are called ________ data
9 / 50
9. The measure of the degree of uniformity of observations in a given set of data can be said to be _____
10 / 50
10. A graphical method of showing correlation between two variables is called __________
11 / 50
11. The second quartile is equivalent to the _________
12 / 50
12. Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts
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. 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 ____
15 / 50
15. Quantitative variable can be classified into _________
16 / 50
16. Forecasts that concern the distant future are _______ forecasts
17 / 50
17. Variables whose values are whole numbers or integers are called ________
18 / 50
18. Correlation is used to determine the extent at which the variable are correlated is called_________ correlation
19 / 50
19. Analysis of Variance (ANOVA) is a test for equality of _____
20 / 50
20. Compute the harmonic mean of 5, 6 and 7
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 yi
22 / 50
22. Variables whose values are given as numerical quantities is called _____ variables
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23. Any characteristics of an object that is capable of assuming different values is called __________
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24. Distributions involving two discrete variables are called __________
25 / 50
25. Forecasts concerning the near future are known as ______ forecasts
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26. The chi-square goodness-of-fit test is be used to test for _____
27 / 50
27. A summary measure that describes any given characteristic of the population is known as a ________
28 / 50
28. Variables whose values are fractional and are points on an internal are called _________
29 / 50
29. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
30 / 50
30. The payoffs associated with each possible outcome in a decision problem should be listed in ______ table
31 / 50
31. The measure of dispersion that ensures highest degree of reliability is ___________
32 / 50
32. 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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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 _________
34 / 50
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. Distributions in which there are only one variable are called _________
37 / 50
37. The following are types of correlation except _________
38 / 50
38. Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it
39 / 50
39. Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data
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40. ANOVA can be classified in ________ ways
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41. Calculate the standard deviation of the date in the table below
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42. Calculate the mean of the date in the table below
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43. _____________________ provides various types of statistical information of either Qualitative or quantitative nature
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44. When an investigator uses questionnaire to collect data from group of people in a population, such data is called ______data
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45. The difference between the highest observation and the lowest observation is called ________
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46. Multiple regression is also known as _____ regression
47 / 50
47. 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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48. Method of forecasts used to generate the general picture (or trend) behind a set of data or time series is ______________
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49. Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable
50 / 50
50. Given the data, 5, 8, 3, 4, 6, 1. Obtain first non-central moment
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