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
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What effect will the elimination of extreme scores at the bottom of a data set have on the mean? ______
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Sum of absolute deviations of the values is least when deviations are taken from: ________
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10 / 50
The arithmetic mean is highly affected by: ________
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12 / 50
If the arithmetic mean of 20 values is 10, then sum of these 20 values is:_____
13 / 50
The median is considered a robust measure because it is resistant to: ________
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The midpoint of the values after they have been ordered from the smallest to the largest or the largest to the smallest is called:____
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The sum of deviations is zero when deviations are taken from:________
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22 / 50
The population mean μ is an example of a: _________
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If ∑i=110Xi-50=100 then sample mean X- will be: ________
24 / 50
The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from: ____________
25 / 50
Step deviation method or coding method is used for computation of the______
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27 / 50
The first step in calculating the median of a discrete variable is to determine the: _______
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The arithmetic mean of 10 items is 4 and the arithmetic mean of 5 items is 10. The combined arithmetic mean is: ______
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If the arithmetic mean of the two numbers X1 and X2 is 5 if X1=3, then X2 is:_________
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If a constant value is added to every observation of data, how would the value of the arithmetic mean behave? ________
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If the smallest observation in a data is decreased, the average which is not affected is: ____
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Given X1=20 and X2=-20. The arithmetic mean will be: ________
37 / 50
Scores that differ greatly from the measures of central tendency are called:_________
38 / 50
Ten families have an average of 2 boys. How many boys do they have together?
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The total of all the observations divided by the number of observations is called: ______
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The sample mean X- is an example of a: ________________
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