Illustration of standard deviation, MATLAB in Mathematics

Assignment Help:

Illustration of Standard Deviation

The less spread out the numbers are, therefore smaller the standard deviation will be, as it is a way of determining the spread of the data. Similarly, the more spread out the numbers are, the bigger the standard deviation will be. For illustration here are two data sets which have similar number of values and also the similar mean, but the standard deviations are quite dissimilar:

>> x1 = [9 10 9.4 9.6];

>> mean(x1)

ans =

    9.5000

>> std(x1)

ans =

    0.4163

>> x2 = [2 17 -1.5 20.5];

>> mean(x2)

ans =

    9.5000

>> std(x2)

ans =

    10.8704


Related Discussions:- Illustration of standard deviation

Example of recursive functions, Example of Recursive functions: This d...

Example of Recursive functions: This definition is recursive as a factorial is defined in terms of the other factorial. There are two parts to any recursive definition: the co

Writing to files, Writing to Files: There are many lower level functio...

Writing to Files: There are many lower level functions which can write to files. We will focus on the fprintf function that can be used to write a file and also to append to a

Polar form, Polar Form: Any complex number z = a + bi can be thought o...

Polar Form: Any complex number z = a + bi can be thought of as a point (a,b) or vector in the complex plane in which the horizontal axis is the real part of z, and the vertica

Illustration of logical built-in functions, Illustration of logical built-i...

Illustration of logical built-in functions: The function find returns the indices of a vector which meet certain criteria. For illustration, to find all the elements in a vect

Strings as matrix, Strings as matrix: The matrix can be generated, tha...

Strings as matrix: The matrix can be generated, that consists of strings in each row. Therefore, essentially it is created as a column vector of strings, but the final result

Function fopen - file function, Function fopen - file function: The pe...

Function fopen - file function: The permission string in the call to the fopen function identifies that the file is opened for writing to it. Just as when reading from a file,

Example of symbolic expression, Example of Symbolic Expression When the...

Example of Symbolic Expression When there is more than one variable, the MATLAB selects which to solve for. In the illustration below, the equation ax 2 + bx = 0 is solved. Th

User input in the while loop - program, User input in the while loop: ...

User input in the while loop: Here is an illustration of running this script: >> readonenum Enter a positive number: -5 Invalid! Enter a positive number: -2.2

Indexed empty matrix, Indexed empty matrix: The Individual elements ca...

Indexed empty matrix: The Individual elements cannot be eliminated from matrices, as matrices always have the similar number of elements in every row. >> mat = [7 9 8; 4 6

Illustration of standard deviation, Illustration of Standard Deviation ...

Illustration of Standard Deviation The less spread out the numbers are, therefore smaller the standard deviation will be, as it is a way of determining the spread of the data.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd