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mamaluj [8]
3 years ago
12

(True/False). If the definition of an IS is the medium for recording and storing data, and disseminating information, this would

be an IS from a structural perspective.
Computers and Technology
2 answers:
irga5000 [103]3 years ago
6 0

Answer:

False

Explanation:

From a structural perspective, the definition of an Information System entails a collection of individuals, data, processes, technology, models, and in some cases formalized language, coming together to form a structure that is cohesive in nature and serves some function or purpose in an organization. If the definition of an IS is the medium for recording and storing data, and disseminating information, this would be an IS from a functional perspective and not structural.

julia-pushkina [17]3 years ago
6 0

Answer:

False

Explanation:

The functional definition of information system is the medium for recording and storing data and disseminating information. It describes the use or function of the system in manipulating data or information.

The procedural use of a computer system to manipulate data by a user, showing the linear relationship of the user side, data and computer side, is the structural definition of an information system. Where the computer side comprises of the software and hardware components and user side is the user and procedure adopted.

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Assuming arrayName is the name of an array and identifier is a name of a variable that has the same data type as the array eleme
creativ13 [48]

Answer:

The answer is "Option a"

Explanation:

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Data entry is the process of getting information into a database. true false
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3 years ago
Read 2 more answers
A computer retail store has 15 personal computers in stock. A buyer wants to purchase 3 of them. Unknown to either the retail st
Dima020 [189]

Answer:

a. 1365 ways

b. Probability = 0.4096

c. Probability = 0.5904

Explanation:

Given

PCs = 15

Purchase = 3

Solving (a): Ways to select 4 computers out of 15, we make use of Combination formula as follows;

^nC_r = \frac{n!}{(n-r)!r!}

Where n = 15\ and\ r = 4

^{15}C_4 = \frac{15!}{(15-4)!4!}

^{15}C_4 = \frac{15!}{11!4!}

^{15}C_4 = \frac{15 * 14 * 13 * 12 * 11!}{11! * 4 * 3 * 2 * 1}

^{15}C_4 = \frac{15 * 14 * 13 * 12}{4 * 3 * 2 * 1}

^{15}C_4 = \frac{32760}{24}

^{15}C_4 = 1365

<em>Hence, there are 1365 ways </em>

Solving (b): The probability that exactly 1 will be defective (from the selected 4)

First, we calculate the probability of a PC being defective (p) and probability of a PC not being defective (q)

<em>From the given parameters; 3 out of 15 is detective;</em>

So;

p = 3/15

p = 0.2

q = 1 - p

q = 1 - 0.2

q = 0.8

Solving further using binomial;

(p + q)^n = p^n + ^nC_1p^{n-1}q + ^nC_2p^{n-2}q^2 + .....+q^n

Where n = 4

For the probability that exactly 1 out of 4 will be defective, we make use of

Probability =  ^nC_3pq^3

Substitute 4 for n, 0.2 for p and 0.8 for q

Probability =  ^4C_3 * 0.2 * 0.8^3

Probability =  \frac{4!}{3!1!} * 0.2 * 0.8^3

Probability = 4 * 0.2 * 0.8^3

Probability = 0.4096

Solving (c): Probability that at least one is defective;

In probability, opposite probability sums to 1;

Hence;

<em>Probability that at least one is defective + Probability that at none is defective = 1</em>

Probability that none is defective is calculated as thus;

Probability =  q^n

Substitute 4 for n and 0.8 for q

Probability =  0.8^4

Probability = 0.4096

Substitute 0.4096 for Probability that at none is defective

Probability that at least one is defective + 0.4096= 1

Collect Like Terms

Probability = 1 - 0.4096

Probability = 0.5904

8 0
2 years ago
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