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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If the arithmetic mean of 20 values is 10, then sum of these 20 values is:_____
3 / 50
The elimination of extreme scores at the top of the set has the effect of:_________
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11 / 50
The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased observations will be: ______
12 / 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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The total of all the observations divided by the number of observations is called: ______
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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:____
20 / 50
Sum of absolute deviations of the values is least when deviations are taken from: ________
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When the values in a series are not of equal importance, we calculate the: _____________
25 / 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______
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27 / 50
Step deviation method or coding method is used for computation of the______
28 / 50
Scores that differ greatly from the measures of central tendency are called:_________
29 / 50
If the smallest observation in a data is decreased, the average which is not affected is: ____
30 / 50
If the arithmetic mean of the two numbers X1 and X2 is 5 if X1=3, then X2 is:_________
31 / 50
The suitable average for qualitative data is: ________
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What effect will the elimination of extreme scores at the bottom of a data set have on the mean? ______
34 / 50
The sum of deviations taken from mean is: _______________
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36 / 50
The first step in calculating the median of a discrete variable is to determine the: _______
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The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from: ____________
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42. Which of these is closer to the mode for a skewed distribution?
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When all the values in a series occur the equal number of times, then it is not possible to calculate the:__________
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48 / 50
The median is considered a robust measure because it is resistant to: ________
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