Data Mining is a technique which aims at obtaining important and useful information in a stockpile of data. This in turn would prove useful in making predictions. It would also inform present decisions.

The Cause and Effect modelling approach explains that for every given action ( effect ), there was a prompting factor ( cause ).

In the case of Sendstars Company, the downward spiral in customer retention was as a result of ill -mannered staff. This effect, prompted the decision to have the employees trained on customer service.

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3 years ago

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Online Book Merchants offers premium customers 1 free book with every purchase of 5 or more books and offers 2 free books with e

docker41 [41]

Answer:

8/9

Explanation:

i remember this question on my daughters book

8 0

3 years ago

Complete the sentence with the correct response. In a two-way selection, if the initial statement is evaluated as , the code ski

mestny [16]

Answer:

True.

The code skips the else command

Explanation:

I will answer this question with the following code segment

n = 1

If n > 0:

Print("greater than 0")

else:

Print("not greater than 0")

From the code segment above

Print("greater than 0") will be executed because the condition If n > 0 is true

Since the if condition is true, the else condition will not be executed

8 0

3 years ago

Requests to access specific cylinders on a disk drive arrive in this order: 24, 20, 4, 40, 6, 38, and 12, and the seek arm is in

GarryVolchara [31]

Answer:

The time required to seek using First come,first served algorithm is 876 milliseconds.

The time required to seek using Shortest Seek Time First algorithm is 360 milliseconds.

The time required to seek using LOOK (initialing moving upwards) algorithm is 348 milliseconds.

Explanation:

Part a,b : First-come, first-served:

The order of the cylinders is as 10, 22, 20, 2, 40, 6, 38

10 + 12 + 2 + 18 + 38 + 34 + 32 = 146 cylinders = 876 milliseconds.

ii) Shortest Seek Time First:

The order of the cylinders is as 20, 22, 10, 6, 2, 39, 40

0 + 2 + 12 + 4 + 4 + 36 + 2 = 60 cylinders = 360 milliseconds.

iii) LOOK (initialing moving upwards):

The order of the cylinders is as 20, 22, 38, 40, 10, 6, 2

0 + 2 + 16 + 2 + 30 + 4 + 4 = 58 cylinders = 348 milliseconds.

7 0

3 years ago