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Useful when exact data is not required?
Estimation
What is the measure of central tendency for nominal and ordinal data?
The mode can be used with both kinds of data. The median may be used with ordinal data but great care is required if the median falls between two classes of observations.The mode can be used with both kinds of data. The median may be used with ordinal data but great care is required if the median falls between two classes of observations.The mode can be used with both kinds of data. The median may be used with ordinal data but great care is required if the median falls between two classes of observations.The mode can be used with both kinds of data. The median may be used with ordinal data but great care is required if the median falls between two classes of observations.
Which of these is true of unclassified data?
Aggregating it may raise its classification level
What kind of motivations is required for data mining?
The Street lawyers or governments were given the chance to appreciate them
What are the steps in calculating the quartile of group data?
Re-arrange the data in increasing order.If there are n data points, calculate (n+1)/4.Find the data point in position (n+1)/4, using interpolation if required. This is the LOWER QUARTILE.Find the data point in position 3*(n+1)/4, using interpolation if required. This is the UPPER QUARTILE.In n is large (>30, say), don't bother to add 1: just work with the observations in the n/4th and 3n/4th positions.
Why is an extra caution required when purging data?
Extra caution is required when purging data to prevent unintentional loss of critical information that may be necessary for compliance, legal, or operational purposes. Inadequate data management can lead to regulatory penalties, loss of customer trust, and potential disruptions in business operations. Additionally, once data is purged, it is often irretrievable, making it essential to ensure that the right data is retained and that proper protocols are followed. Careful planning and execution help mitigate risks associated with data loss.
In hamming code you have 4 bit data How many extra bits are required for code?
you need thee extra bit for 4 bit data in hamming code.
What should be done as a safety precaution before purging data?
Backups!
What is purging a hard disk?
Purging a hard disk refers to the process of securely deleting all data on the disk to prevent recovery. This typically involves using specialized software or tools that overwrite the data multiple times, making it irretrievable. Purging is often performed before disposing of or repurposing a hard drive to protect sensitive information. It differs from simple formatting, which may leave data recoverable.
Does the chocolate touch need Internet on it?
no it doesnt, its just an option you can add for $9.99 extra actually it is required to have a data pack (internet) and the lowest package is 25mb for 9.99 extra
What is the purpose of deduplication software?
Deduplication software is used to eliminate blocks of data that are not required on the computer system. By not storing extra data the system is freed up for other applications.
What is the meaning of the purging of account?
The purging of accounts refers to the process of removing or deleting inactive or unused accounts from a system or database. This action is often taken to free up resources, enhance security, and maintain the integrity of data. It can also involve clearing out outdated information to improve overall system performance and user experience. Organizations may implement account purging as part of their data management and compliance strategies.
Advantages and disadvantages of External database?
Dis Advantages: Security may be compromised without good controls, Extra hardware may be required, System is likely to be complex Advantages: Reduced data redundancy, Secured data, Integrated data, Controlled data inconsistency
Is a data plan required for an iPhone?
Yes, you have to have a data plan with AT&T or any other mobile phone company to place calls or use 3G. The data plan is approx. 30$ extra a month on top of the regular phone line costs.
Avoid data redundancy?
Centralized control of data by the DBA avoids unnecessary duplication of data and effectively reduces the total amount of data storage required. It also eliminates the extra processing necessary to trace the required data in a large storage of data. Another advantage of avoiding duplication is the elimination of the inconsistencies that tend to be present in redundant data files. Any redundancies that exist in the DBMS are controlled and the system ensures that these multiple copies are consistent.
What are two methods of purging records?
Two common methods of purging records are shredding and electronic data wiping. Shredding involves physically destroying paper documents to ensure that sensitive information cannot be reconstructed. Electronic data wiping, on the other hand, uses software to overwrite digital files, making them irretrievable. Both methods are essential for maintaining confidentiality and compliance with data protection regulations.
Does a smartphone cost extra monthly?
Usually yes, but it depends what data packages (i.e. internet on iphones and itouches), etc you choose to get/ are required to get depending on the smart phone.
