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
1. Which of these is closer to the mode for a skewed distribution?
2 / 50
3 / 50
The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from: ____________
4 / 50
The arithmetic mean of 10 items is 4 and the arithmetic mean of 5 items is 10. The combined arithmetic mean is: ______
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
Step deviation method or coding method is used for computation of the______
7 / 50
8 / 50
The median is considered a robust measure because it is resistant to: ________
9 / 50
10 / 50
When the values in a series are not of equal importance, we calculate the: _____________
11 / 50
12 / 50
13 / 50
14 / 50
The sample mean X- is an example of a: ________________
15 / 50
The sum of the squares of the deviations about mean divided by the number of observations is: ________
16 / 50
17 / 50
The population mean μ is an example of a: _________
18 / 50
19 / 50
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
25 / 50
Scores that differ greatly from the measures of central tendency are called:_________
26 / 50
27 / 50
28 / 50
29 / 50
The elimination of extreme scores at the top of the set has the effect of:_________
30 / 50
31 / 50
When all the values in a series occur the equal number of times, then it is not possible to calculate the:__________
32 / 50
The frequency distribution of the hourly wage rate of 60 employees of a paper mill is as follows: The mean wage rate is:N______
33 / 50
The sum of deviations taken from mean is: _______________
34 / 50
35 / 50
If the arithmetic mean of 20 values is 10, then sum of these 20 values is:_____
36 / 50
37 / 50
38 / 50
Sum of absolute deviations of the values is least when deviations are taken from: ________
39 / 50
40 / 50
The total of all the observations divided by the number of observations is called: ______
41 / 50
42 / 50
43 / 50
44 / 50
What effect will the elimination of extreme scores at the bottom of a data set have on the mean? ______
45 / 50
The sum of deviations is zero when deviations are taken from:________
46 / 50
47 / 50
48 / 50
If the arithmetic mean of the two numbers X1 and X2 is 5 if X1=3, then X2 is:_________
49 / 50
50 / 50
If a constant value is added to every observation of data, how would the value of the arithmetic mean behave? ________
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