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!
STT205
1 / 50
2 / 50
Any measure indicating the Centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of: ______
3 / 50
Sum of absolute deviations of the values is least when deviations are taken from: ________
4 / 50
If a constant value is added to every observation of data, how would the value of the arithmetic mean behave? ________
5 / 50
The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased observations will be: ______
6 / 50
7 / 50
8 / 50
9 / 50
10 / 50
11 / 50
12 / 50
If the smallest observation in a data is decreased, the average which is not affected is: ____
13 / 50
What effect will the elimination of extreme scores at the bottom of a data set have on the mean? ______
14 / 50
14. Which of these is closer to the mode for a skewed distribution?
15 / 50
If the arithmetic mean of 20 values is 10, then sum of these 20 values is:_____
16 / 50
Scores that differ greatly from the measures of central tendency are called:_________
17 / 50
18 / 50
The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from: ____________
19 / 50
The midpoint of the values after they have been ordered from the smallest to the largest or the largest to the smallest is called:____
20 / 50
21 / 50
22 / 50
23 / 50
The first step in calculating the median of a discrete variable is to determine the: _______
24 / 50
The arithmetic mean of 10 items is 4 and the arithmetic mean of 5 items is 10. The combined arithmetic mean is: ______
25 / 50
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27 / 50
The total of all the observations divided by the number of observations is called: ______
28 / 50
29 / 50
30 / 50
31 / 50
32 / 50
The suitable average for qualitative data is: ________
33 / 50
Step deviation method or coding method is used for computation of the______
34 / 50
When all the values in a series occur the equal number of times, then it is not possible to calculate the:__________
35 / 50
The sample mean X- is an example of a: ________________
36 / 50
37 / 50
38 / 50
The arithmetic mean is highly affected by: ________
39 / 50
40 / 50
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42 / 50
Given X1=20 and X2=-20. The arithmetic mean will be: ________
43 / 50
44 / 50
45 / 50
46 / 50
47 / 50
The sum of deviations is zero when deviations are taken from:________
48 / 50
49 / 50
50 / 50
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