Why is it a good programming practice not to have too many layers of inherited classes?
A. Actually the more the merrier.
B. Easy to lose track of the members in the great-grandchildren classes.
C. so that you know which class’ constructor will execute first.
D. None of the above.
B
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Which is the best tool for managing multiple filters within a PivotTable?
A) Sorting B) Refreshing the data C) PivotChart D) Slicers
The Grubbs’ test, which is described by Algorithm 10.1, is a more statistically sophisticated procedure for detecting outliers than that of Definition 10.3. It is iterative and also takes into account the fact that the z-score does not have a normal distribution. This algorithm computes the z-score of each value based on the sample mean and standard deviation of the current set of values. The value with the largest magnitude z-score is discarded if its z-score is larger than gc, the critical value of the test for an outlier at significance level ?. This process is repeated until no objects are eliminated. Note that the sample mean, standard deviation, and gc are updated at each iteration.
(a) What is the limit of the value m??1
m
t2
c
m?2+t2
c
used for Grubbs’ test as
m approaches infinity? Use a significance level of 0.05.
(b) Describe, in words, the meaning of the previous result.