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. Purposive samples can be occasionally referred to as ______ samples
2 / 50
2. Variables whose values are given as numerical quantities is called _____ variables
3 / 50
3. ANOVA can be classified in ________ ways
4 / 50
4. The payoffs associated with each possible outcome in a decision problem should be listed in ______ table
5 / 50
5. In null hypothesis for a Chi-square test, both variables are _____
6 / 50
6. 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
7 / 50
7. In simple linear regression, the numbers of unknown constants are ______
8 / 50
8. Hypothesis testing starts with a statement about population parameters such as _________
9 / 50
9. Under correlation coefficient, When r = +1, there is a ________linear relationship
10 / 50
10. Variables that assume any value within an interval or have the property of infinite divisibility are _____ variables
11 / 50
11. Variables whose values are fractional and are points on an internal are called _________
12 / 50
12. Correlation values ranges from _________
13 / 50
13. Calculate the standard deviation of the date in the table below
14 / 50
14. Sampling is simply a process of learning about the __________________ on the basis of a sample drawn from it
15 / 50
15. The difference between the highest observation and the lowest observation is called ________
16 / 50
16. Data collected on a particular variable or set of variables over time is called _________
17 / 50
17. Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________
18 / 50
18. The degrees of freedom for the test statistic for μ when σ is unknown is __________
19 / 50
19. _______ is value of the sample statistic which is taken as an approximation of the parameter value
20 / 50
20. The following are types of correlation except _________
21 / 50
21. The boundaries separating the items in a given distribution into quarters are called ______
22 / 50
22. The branches of statistics that deals with mutual dependence or inter-relationship of two or more variables is _____
23 / 50
23. _____________________ provides various types of statistical information of either Qualitative or quantitative nature
24 / 50
24. Distributions involving two discrete variables are called __________
25 / 50
25. Under coefficient of correlation, When r = 0 i.e. there is ________ relationship
26 / 50
26. Distributions involving two discrete variables are called ___________
27 / 50
27. the most common index numbers are _____
28 / 50
28. Method of forecasts used to generate the general picture (or trend) behind a set of data or time series is ______________
29 / 50
29. A summary measure that describes any given characteristic of the population is known as a ________
30 / 50
30. Data collected on a particular variable or set of variables over time is called _________
31 / 50
31. Analysis of Variance (ANOVA) is a test for equality of _____
32 / 50
32. 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 ____
33 / 50
33. Range of 8, 12, 5, 15 is ______
34 / 50
34. 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 _________
35 / 50
35. Like other quartiles, the median quartile is at what percent mark:_____%
36 / 50
36. The chi-square goodness-of-fit test is be used to test for _____
37 / 50
37. The boundaries separating the items in a given distribution into quarters are called ________
38 / 50
38. 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
39 / 50
39. When an investigator uses questionnaire to collect data from group of people in a population, such data is called ______data
40 / 50
40. Variables whose values are fractional and are points on an internal are called _________
41 / 50
41. Calculate the mean of the date in the table below
42 / 50
42. Classification of data based on sources gives rise to __________
43 / 50
43. The degree of randomness of selection would depend upon the process of selecting the items from the _________
44 / 50
44. Quantitative variable can be classified into ________
45 / 50
45. A graphical method of showing correlation between two variables is called __________
46 / 50
46. Individual data can also be called ____________ data
47 / 50
47. 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 _______
48 / 50
48. Housing unit, number of students in a class, number of goals scored and number of cars are examples of ______ variable
49 / 50
49. 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
50 / 50
50. A graphical method of showing correlation between two variables is called ________
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