Task:
Construct a frequency distribution with suitable class interval size of marks obtained by 50 students of a class are given below:
22, 51, 34, 39, 68, 69, 9, 37, 16, 48, 36, 27, 55, 59, 60, 59, 74, 80, 19, 29, 31, 69, 62, 60, 28, 67, 51, 73, 17, 24, 44, 45, 51, 66, 68, 72, 74, 41, 57, 41, 67, 51, 53, 23, 58, 34, 39, 48, 36, 79
Solution:
Arrange the marks in ascending order as Continue reading
Relative frequency – is how often something happens divided by all outcomes.
Example 1:
We have the frequency distribution of the chips “Pringles” at 40 different shops. Continue reading
In this guide I will show you how to create a program on Windows Forms which will help us to determine if the symbols that we input constitute a palindrome.
Let’s create a simple user interface:
Here we have a TextBox, Label, and Button. The message with the result of checking will be shown using MessageBox.
Double click the button “Check it” and go to the part of the code where we will perform the checking. Continue reading
Induction is a process of logical reasoning, based on the transition from private to general provisions. The famous “duck test” is a prime example of such a process: If it walks like a duck and quacks like a duck, it must be a duck. Continue reading
In the process of development, sometimes there’s a need to draw some interface elements manually. The Ncontrol component was created exactly for these purposes.
The library uses the NGraphics library to perform custom drawings to make it easy to build complex controls. The project is hosted on Github and is distributed under the MIT license. NControlView can be used both to do custom drawings and to create complex custom controls.
To make a long story short, it’s a rendering visualization mechanism on top of the standard mechanisms in iOS, Android, and Windows Phone. Continue reading
Hello! Today I want to show you how to create, start and stop simple service in Android OS.
Thus, the service is a certain task that runs in the background and does not use UI. The service can be started and stopped from applications and other services. Also, you can connect to the running service and interact with it. Continue reading
Theory
Heap Sort is classical algorithm which, perhaps any programmer should know. This sorting algorithm is notable for the fact that regardless of the data set it has one and the same complexity time – O (n log n). Continue reading
Naive Bayes classifier is one of the easiest classification algorithms. However, very often it works even better than the more complex algorithms. I want to share the C# code and a description of how it all works.
And so, for example, I will take the problem of determining the type of the vehicle using it’s dimensions. Of course, to determine the type, you can create a large list of vehicles. But this list, in any case will never be comprehensive. In order to solve this problem, you can “train” a model for the marked name. Continue reading
Problem statement: There is a lap joint with one rivet, as shown in the Figure 1 below. The diameter of the rivet is 4 mm. The material of the rivet, as well as the material of pates in joint are given in the table 1 below. Force which is applied to the plate is given in form of distributed force through the cross-sectional area of the plate. Perform the Stress Analysis of the joint in order to verify the durability of the junction.
Figure 1. Lap joint
In order to design a Double Pipe Heat Exchanger in ANSYS 16.1 the next steps were
accomplished:
a) Creating the project:
Figure 1. Project “double-pipe”