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Arrange the values in increasing order. If the number of observations n is odd, the median is n/2+1 st value. n/2 is integer division (ignore the fraction). If there are 5 observations, the median is 5/2+1 = the third observation. If the number of observations is even, median = [ x(n/2)+x(n/2+1)] /2, the average of the two middle values. If there are 10 observations, 10/2 +(10/2+1), the average of the fifth and the sixth observation. The median is such that 50 % of the cases lie below it and 50 % above.
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Which name of the data flow is invalid on a physical data flow diagram?
In a physical data flow diagram, an invalid name for a data flow might be something vague or non-descriptive, such as "Data" or "Information." Data flows should have clear and specific names that indicate the type of data being transferred, such as "Customer Order Data" or "Invoice Information." Using ambiguous names can lead to confusion and misinterpretation of the system's operations.
What are the disadvantages of data types?
Disadvantages of data types include the potential for data loss during type conversions, which can occur when changing from a more complex type to a simpler one. Additionally, rigid data type constraints can limit flexibility, making it difficult to handle diverse data inputs. This can lead to increased complexity in code, as developers must implement additional checks and conversions to accommodate various data types. Lastly, improper use of data types can result in performance issues, particularly in large datasets or when processing speed is critical.
Advantages and disadvantages of data manipulation language in sql?
Data Manipulation Language (DML) in SQL, such as SELECT, INSERT, UPDATE, DELETE, allows users to retrieve, modify, and delete data in a database. One advantage of DML is its flexibility in manipulating data, enabling users to perform complex queries and updates. However, a disadvantage is the potential for human error when writing DML statements, which can lead to unintended data modifications or deletions. Additionally, DML operations can impact database performance, especially when dealing with large datasets.
Difference between error control and flow control?
Flow Control:is one important design issue for the Data Link Layer that controls the flow of data between sender and receiver.In Communication, there is communication medium between sender and receiver. When Sender sends data to receiver than there can be problem in below case :1) Sender sends data at higher rate and receive is too sluggish to support that data rate.To solve the above problem, FLOW CONTROL is introduced in Data Link Layer. It also works on several higher layers. The main concept of Flow Control is to introduce EFFICIENCY in Computer Networks.Error Control:Network is responsible for transmission of data from one device to another device. The end to end transfer of data from a transmitting application to a receiving application involves many steps, each subject to error. With the error control process, we can be confident that the transmitted and received data are identical. Data can be corrupted during transmission. For reliable communication, error must be detected and corrected.Error control is the process of detecting and correcting both the bit level and packet level errors.Types of ErrorsSingle Bit ErrorThe term single bit error means that only one bit of the data unit was changed from 1 to 0 and 0 to 1.Burst ErrorIn term burst error means that two or more bits in the data unit were changed. Burst error is also called packet level error, where errors like packet loss, duplication, reordering. BY RAHUL SAGORE from IIPS, INDORE
Advantages and disadvantages of multivalued dependencies in dbms?
Multivalued dependencies (MVDs) in a database management system (DBMS) allow for the storage of multiple values for a single attribute, facilitating more complex data relationships and reducing redundancy. This can enhance data integrity and streamline queries by grouping related data together. However, MVDs can also lead to complexities in database design and normalization, potentially causing anomalies and making it more challenging to enforce data integrity constraints. Additionally, they may complicate query performance and maintenance, as retrieving data may require more intricate joins and operations.
Mode of ungrouped data with example?
*Ungrouped Data*Mode of ungrouped data:An observation occurring most frequently in the data is called mode of the data. It is denoted by Z.For Example:Find the median of the following observations4,6,8,6,7,8,8Sol:In the given data, the observation 8 occurs maximumnumber of times (3)\ Mode (Z) = 8
What is ungrouped data?
The ________________ of the ungrouped data is the value that most frequently appears in a set of data.
Which measures of central location always have only one value for a set of grouped or ungrouped data?
Mean and median are the measures of central location that always have one value. This is true for a set of grouped or ungrouped data.
How do you solve ungrouped data?
You cannot "solve" ungrouped data since ungrouped data is not a question. You can calculate the mean or the variance, standard deviation or skewness, or a whole range of other measures for ungrouped data. But you have not specified what.
How do you program an ungrouped median?
find median of n observation in c program
Definition of ungrouped data?
Ungrouped data is data that is not grouped in a specific order. Grouped data is a set of data that has unique characteristics in common.
What is definition of ungrouped data?
Single data
Grouped data and ungrouped data in Statistics?
In statistics, ungrouped data refers to raw data points that are presented individually, allowing for detailed analysis and precise calculations, such as mean and median. In contrast, grouped data is organized into classes or intervals, which simplifies representation and analysis, particularly for larger datasets, but may obscure specific values. Grouped data is often displayed in frequency tables or histograms, while ungrouped data is typically shown in lists or scatter plots. Each type has its own advantages, depending on the context and goals of the analysis.
Decile For Ungrouped Data?
sht happens
What is the formula of decile for ungrouped data?
1,5,50
what are the advantages of using a grouped data over an ungrouped data?
Nothing, they stealing yo data
Formula of MEDIAN for ungrouped data?
If there are n observations, then, If n is odd then let m = (n+1)/2. The median is the mth value in the ordered set of observations. If n is even then let m = n/2. The median is the average of the mth and (m+1)th values in the ordered set of observations.
