The DAY(date) function is used to _____.?
A. ?extract the day of the month from the date value
B. ?return the day in the date value where 1=Monday, 2=Tuesday, and so forth
C. ?create a date value for the date represented by the year, month, and day arguments
D. ?display the current date and time
Answer: A
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Consider the data set shown in Table 7.12.
(a) For each combination of rules given below, specify the rule that has the
highest confidence.
i. 15
and 15
ii. 15
15
iii. 15
(b) Suppose we are interested in finding the average number of hours spent
online per week by Internet users between the age of 15 and 35. Write
the corresponding statistics-based association rule to characterize the
segment of users. To compute the average number of hours spent online,
approximate each interval by its midpoint value (e.g., use B = 7.5 to
represent the interval 5
Test whether the quantitative association rule given in part (b) is sta-
tistically significant by comparing its mean against the average number
of hours spent online by other users who do not belong to the age group.
Match the following parts of an e-mail to their meaning:
I. subject line II. signature block III. salutation IV. closing V. body A. single-spaced paragraphs that are brief and relevant B. a courteous recognition with which you begin a message C. sender's name and contact information D. short description of the content of the e-mail message E. should match the beginning of the message
CASE STUDY D-1Jim has created a new flyer advertise a concert that his band is giving on Friday night. He created a logo in Illustrator and would now like to include that logo on his flyer. Jim has been able to successfully include a bitmap image onto his flyer. He would like to zoom in on one section so that he can examine the pixels more closely. What tool would he use to accomplish this?
A. the Enlarge tool B. the Close View tool C. the Zoom tool D. none of the above
The formal process of deciding which fields should be grouped together into which fields is called ________
Fill in the blank(s) with correct word