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 measure of the degree of uniformity of observations in a given set of data can be said to be _____
2 / 50
2. The degree of randomness of selection would depend upon the process of selecting the items from the _________
3 / 50
3. Quantitative variable can be classified into _________
4 / 50
4. A logical approach used in an investigation to indicate possible alternatives or choices from which an acceptable solution may be derived is called______
5 / 50
5. 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____
6 / 50
6. A graphical method of showing correlation between two variables is called __________
7 / 50
7. A summary measure that describes any given characteristic of the population is known as a ________
8 / 50
8. _____________________ provides various types of statistical information of either Qualitative or quantitative nature
9 / 50
9. Variables that assume any value within an interval or have the property of infinite divisibility are _____ variables
10 / 50
10. 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 ____
11 / 50
11. Quantitative variable can be classified into ________
12 / 50
12. Like other quartiles, the median quartile is at what percent mark:_____%
13 / 50
13. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
14 / 50
14. The difference between the highest observation and the lowest observation is called ________
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. When the correlation coefficient r, equals zero, then __________
17 / 50
17. _______ is value of the sample statistic which is taken as an approximation of the parameter value
18 / 50
18. Multiple regression is also known as _____ regression
19 / 50
19. Correlation values ranges from _________
20 / 50
20. The chi-square test is not very effective if the sample is _______
21 / 50
21. Indicators which reflect the relative changes in the level of certain phenomenon in any given period are ________
22 / 50
22. Distributions involving two discrete variables are called ________
23 / 50
23. The measure of dispersion that ensures highest degree of reliability is ___________
24 / 50
24. 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 _______
25 / 50
25. In null hypothesis for a Chi-square test, both variables are _____
26 / 50
26. Calculate the variance of the date in the table below
27 / 50
27. 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
28 / 50
28. The following are types of correlation except _________
29 / 50
29. Variables whose values are given as numerical quantities is called _____ variables
30 / 50
30. 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
31 / 50
31. Variables whose values are fractional and are points on an internal are called _________
32 / 50
32. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____
33 / 50
33. Data collected from CBN website are called ________ data
34 / 50
34. The first moment about mean is given by [ H_{1}=]
35 / 50
35. Distributions in which there are only one variable are called ___________
36 / 50
36. Compute the harmonic mean of 5, 6 and 7
37 / 50
37. The following are measurement scales except _______
38 / 50
38. 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
39 / 50
39. What is the range of the data 5, 2, 2, 3, 7, 8, 18, 1 ?
40 / 50
40. The boundaries separating the items in a given distribution into quarters are called ________
41 / 50
41. The degrees of freedom for the test statistic for μ when σ is unknown is __________
42 / 50
42. Hypothesis testing starts with a statement about population parameters such as _________
43 / 50
43. Out of all measures of dispersion, the easiest one to calculate is_____
44 / 50
44. ANOVA means _______
45 / 50
45. 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
46 / 50
46. Forecasts that concern the distant future are _______ forecasts
47 / 50
47. ANOVA can be classified in ________ ways
48 / 50
48. The boundaries separating the items in a given distribution into quarters are called ______
49 / 50
49. Analysis of Variance (ANOVA) is a test for equality of _____
50 / 50
50. The difference between the highest observation and the lowest observation is called ________
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