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. Compute the harmonic mean of 5, 6 and 7
2 / 50
2. The following are types of correlation except _________
3 / 50
3. Variables whose values are fractional and are points on an internal are called _________
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. Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts
6 / 50
6. In simple linear regression, the numbers of unknown constants are ______
7 / 50
7. Compute the harmonic mean of 5, 6 and 7
8 / 50
8. The measure of dispersion that ensures highest degree of reliability is ___________
9 / 50
9. Data collected from CBN website are called ________ data
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 yi
11 / 50
11. The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is _______
12 / 50
12. A summary measure that describes any given characteristic of the population is known as a ________
13 / 50
13. Out of all measures of dispersion, the easiest one to calculate is_____
14 / 50
14. ANOVA means _______
15 / 50
15. 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 ____
16 / 50
16. Distributions involving two discrete variables are called ___________
17 / 50
17. Correlation is used to determine the extent at which the variable are correlated is called_________ correlation
18 / 50
18. The boundaries separating the items in a given distribution into quarters are called ________
19 / 50
19. Any characteristics of an object that is capable of assuming different values is called __________
20 / 50
20. Calculate the mean of the date in the table below
21 / 50
21. Forecasts concerning the near future are known as ______ forecasts
22 / 50
22. The following are types of correlation except _________
23 / 50
23. A method that involves conference techniques by which a group of people attempts to find solution for specified problems is known as _______
24 / 50
24. Quantitative variable can be classified into ________
25 / 50
25. Under correlation coefficient, When r = +1, there is a ________linear relationship
26 / 50
26. Given the data, 5, 8, 3, 4, 6, 1. Obtain first non-central moment
27 / 50
27. A graphical method of showing correlation between two variables is called __________
28 / 50
28. Variables whose values are given as numerical quantities is called _____ variables
29 / 50
29. Quantitative variable can be classified into _________
30 / 50
30. _____________________ provides various types of statistical information of either Qualitative or quantitative nature
31 / 50
31. Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it
32 / 50
32. Correlation values ranges from ________
33 / 50
33. 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 _______
34 / 50
34. Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable
35 / 50
35. The difference between the highest observation and the lowest observation is called ________
36 / 50
36. The second quartile is equivalent to the _________
37 / 50
37. Analysis of Variance (ANOVA) is a test for equality of _____
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. A graphical method of showing correlation between two variables is called ________
41 / 50
41. The boundaries separating the items in a given distribution into quarters are called ______
42 / 50
42. 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____
43 / 50
43. Variables whose values are whole numbers or integers are called ________
44 / 50
44. The payoffs associated with each possible outcome in a decision problem should be listed in ______ table
45 / 50
45. Multiple regression is also known as _____ regression
46 / 50
46. Variables whose values are whole numbers or integers are called _________
47 / 50
47. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____
48 / 50
48. Distributions in which there are only one variable are called ___________
49 / 50
49. The following are measurement scales except _______
50 / 50
50. Any characteristics of an object that is capable of assuming different values is called _______
Restart quiz
Rate this quiz
