In which Windows desktop OS was the Start button replaced by the Start screen?
A. Windows 8
B. Windows 10
C. Windows 7
D. Windows 9
Answer: A
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The following questions examine how the support and confidence of an asso- ciation rule may vary in the presence of a concept hierarchy.
(a) Consider an item x in a given concept hierarchy. Let x1, x2, ..., xk denote the k children of x in the concept hierarchy. Show that s(x) ? k i=1 s(xi), where s(·) is the support of an item. Under what conditions will the inequality become an equality? (b) Let p and q denote a pair of items, while ˆp and ˆq are their corresponding parents in the concept hierarchy. If s({p, q}) > minsup, which of the following itemsets are guaranteed to be frequent? (i) s({p, q ˆ }), (ii) s({p, qˆ}), and (iii) s({p, ˆ qˆ}). (c) Consider the association rule {p} ?? {q}. Suppose the confidence of the rule exceeds minconf. Which of the following rules are guaranteed to have confidence higher than minconf? (i) {p} ?? {qˆ}, (ii) {pˆ} ?? {q}, and (iii) {pˆ} ?? {qˆ}.
Identify the letter of the choice that best matches the phrase or definition.
A. Returns a number that corresponds to the system date and time beginning with December 31, 1899. B. Fills a destination area using the format of the source area; no content is copied. C. Determines the value of a cell on which the formula depends. D. Scrutinizes the impact of changing values in cells that are referenced by a formula in another cell. E. Shows the relationship or proportion of parts to a whole. F. Indicates a cell is using a name Excel does not recognize. G. Pastes the contents and format of the source area. H. Copies the format and contents. I. Assigns a value to a cell based on a logical test. J. Keeps a cell reference constant when copying a formula or function.
The horizontal axis is also known as the y-axis.
Answer the following statement true (T) or false (F)
Almost all the ____________________ ISP routers properly forward IPv6 packets.
Fill in the blank(s) with the appropriate word(s).