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Sladkaya [172]
3 years ago
11

Describe four traditional tehniques for collecting information during analysis.

Computers and Technology
1 answer:
Zarrin [17]3 years ago
7 0

Answer:

1.Interviewing and listening- Involves talking with users individually or as a group to discover their views about the current and target systems; it also involves carefully preparing an interview outline and guide before conducting the interview

2.Administering questionnaires- Involves designing a questionnaire and determining who should respond to it; this method is typically used when there are too many key users to interview individually.

3.Directly observing users- involves watching how people work in order to uncover information users may not be consciously aware of. Direct observation is best when detailed or complicated procedures must be documented, when you do not want people to know they are giving you information you need, when only a few people are involved, and observational data are representative of all situations

. 4.Analyzing procedures and other documents- involves identifying and collecting written procedures, forms, reports, and other relevant documents in order to better identify data and processes that would be part of the current and target systems.

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Use the following cell phone airport data speeds​ (Mbps) from a particular network. Find P10. 0.1 0.1 0.3 0.3 0.3 0.4 0.4 0.4 0.
sasho [114]

Answer:

P_{10} =0.1

Explanation:

Given

0.1, 0.1, 0.3, 0.3, 0.3, 0.4, 0.4, 0.4, 0.6, 0.7, 0.7, 0.7, 0.8, 0.8

Required

Determine P_{10}

P_{10} implies 10th percentile and this is calculated as thus

P_{10} = \frac{10(n+1)}{100}

Where n is the number of data; n = 14

P_{10} = \frac{10(n+1)}{100}

Substitute 14 for n

P_{10} = \frac{10(14+1)}{100}

P_{10} = \frac{10(15)}{100}

Open the bracket

P_{10} = \frac{10 * 15}{100}

P_{10} = \frac{150}{100}

P_{10} = 1.5th\ item

This means that the 1.5th item is P_{10}

And this falls between the 1st and 2nd item and is calculated as thus;

P_{10} = 1.5th\ item

Express 1.5 as 1 + 0.5

P_{10} = (1 +0.5)\ th\ item

P_{10} = 1^{st}\ item +0.5(2^{nd} - 1^{st}) item

From the given data; 1st\ item = 0.1 and 2nd\ item = 0.1

P_{10} = 1^{st}\ item +0.5(2^{nd} - 1^{st}) item becomes

P_{10} =0.1 +0.5(0.1 - 0.1)

P_{10} =0.1 +0.5(0)

P_{10} =0.1 +0

P_{10} =0.1

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