Explore BrainMass
Share

Problem with Data Representation

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

I have some problem with converting between different data system.
I would like to know how I can convert from signed binary numbers to decimal values, from decimal numbers to signed magnitude, 2's complement, and short floating point format. Also, it would be better to provide examples with positive and negative values as well as decimal value number (ie. 43.625).

Edit: Just to make clear a bit..

I need conversions in the following:

1.) Signed binary numbers <-> decimal values
2.) decimal numbers <-> signed magnitude, short floating point and 2's complement (Show in 8-bits representation)

I would also like to know does reverse conversion work the same way?....

© BrainMass Inc. brainmass.com October 24, 2018, 6:36 pm ad1c9bdddf
https://brainmass.com/computer-science/hardware/problem-data-representation-44325

Solution Summary

The solution discusses the problem with data representation.

$2.19
See Also This Related BrainMass Solution

Need assistance with practice problem

I need assistance on building graphs/charts for the data. This is a practice problem. If you could please provide assistance so that I could use it as a model to complete the orignal assignment.

Data for Practice Problems

Standard Test Scores
Name Gender Absences PE Math Writing Reading
Alex Boy 5 49 85 86 80
Anthony Boy 18 51 39 71 75
Douglas Boy 1 82 74 78 79
Jorge Boy 4 56 66 68 60
Joshua Boy 5 83 79 78 77
Luke Boy 0 94 89 84 84
Robert Boy 17 36 36 56 50
Rupert Boy 4 24 55 56 52
Seth Boy 0 61 92 89 83
Wayne Boy 1 65 92 96 91
Blair Girl 3 94 59 66 90
Brooke Girl 2 75 35 43 46
Carmen Girl 0 49 91 91 90
Charlita Girl 16 23 49 55 49
Kim Girl 2 71 90 92 95
Li Girl 1 73 98 93 95
Rachel Girl 2 92 87 92 91
Sara Girl 3 33 87 93 94
Sheetal Girl 0 18 100 97 97
Tawayna Girl 14 31 65 55 63

Determine the types of measurement scales for each variable (Nominal, Ordinal, Interval, Ratio):

1) Name
2) Gender
3) Absences
4) Physical Education (PE)
5) Math
6) Writing
7) Reading
Determine the number of boys and girls in the class and create a bar graph or pie chart to display the information.

Determine the correlations between pairs of all interval variables (i.e., Absences with PE, PE with math, math with writing, etc.)

How much of the math grade can be explained by the PE grade? How much of the writing grade can be explained by the reading grade?

View Full Posting Details