Text that you enter into a SmartArt diagram can be entered in a(n) ________ pane

When comments are visible, by default they display:

A) in the left margin. B) in the bottom margin. C) in the markup area. D) within the body text of the document.

Compute the confidence of the association rule {a}?{b}. Is the rule interesting according to the confidence measure?

Suppose we have market basket data consisting of 100 transactions and 20 items. If the support for item a is 25%, the support for item b is 90% and the support for itemset {a, b} is 20%. Let the support and confidence thresholds be 10% and 60%, respectively.