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Statistics Test

Enter the letter for the matching Answer
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1.
when mean > median, what would you expect your distribution curve to look like?
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2.
the mode is the most ___________________ and is used most appropriately with _____________________variables
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3.
IQR:
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4.
the mean will be pulled _______________ of the outlying scores relative to the median
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5.
three traits a good measure of dispersion should include:
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6.
sigma of x-sub-I =
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7.
range:
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8.
scores that are beyond 3 times the height of the IQR box in either direction are termed:
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9.
horizontal line in the middle of the IQR box represents :
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10.
the sum of x sub i - x bar =
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11.
if you have some extremely low outliers, what will happen to the distribution curve?
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12.
the mean and median will have the same value only in distributions that are ________________-
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13.
the 5th decile, is equal to the ________ percentile
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14.
t/f data that has a mean of 30 and a range of zero means there is littler variance
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15.
______________identifies a point below which a specific percentage of cases fall
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16.
formula for mean (x bar)=
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17.
the greater the skew, the ______________ the difference between the 2 measures of central tendency (mean & median)
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18.
If you scored higher than the 3rd quartile (Q3) then you made __________________________
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19.
distributions with outliers have a ___________:
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20.
what does least square principle say?
A.
skewed to the right (+ skew)
B.
50th
C.
common value; nominal-level
D.
above 75% of the scores
E.
extreme outliers (outliers are outside of 1.5 height of box or outside the whiskers)
F.
in the direction
G.
mean is pt around which variation of score is minimized; if difference b/t scores and mean are squared and then added, the resultant sum will be less than the sum of the squared differences b/t the scores and any other point in the distribution
H.
should use all the scores in the dist; should describe the average or typical deviation of the scores; increase in value as the scores become more diverse
I.
symmetrical
J.
false - no variance
K.
greater
L.
the sum of all data points
M.
skew
N.
distance between highest and lowest scores in distribution (high score-low score)
O.
percentile
P.
it will skew to the L (-) = mean< median
Q.
0
R.
the sum of (xi) / N
S.
the distance from the third to 1st quartile; a kind of range that acoids some of the problems associated with range outliers by considering only the middle 50% of the cases in distribution
T.
median
Type the Answer that corresponds to the displayed Question.
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21.
the standard deviation is ____________ for more diverse distributions and ______________ for less diverse distributions
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22.
the sum of squared deviations will _______________ with sample size
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23.
median can be found for _______________ data, but generally it more appropriate for ______________ data.
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24.
most commonly used measure of central tendency
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25.
This principle underlies the fact that the mean is closer to all of the scores than the other measures of central tendency
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26.
_____________ describe the variety, diversity, or heterogeneity of a distribution of scores; describes the variability of data (variants.)
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27.
the greater the value of a range the greater the _______________ in the distribution
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28.
central purpose of descriptive statistics is to __________________ data
Type the Question that corresponds to the displayed Answer.
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29.
range might exaggerate the amount of dispersion for most of scores in distribution
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30.
outliers (extreme values) skew the mean

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Created by: aereal