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

Three-dimensional pie and bar, Three-dimensional pie and bar: For the ...

Three-dimensional pie and bar: For the bar3 function, x & y vectors are passed and the function displays three-dimensional bars as shown in figure: Figure: Three-dimen

Plot types - plot functions, Plot types: Besides plot and bar, there a...

Plot types: Besides plot and bar, there are another plot types like stem plots, histograms, stem plots, area plots and pie charts, and also other functions which customize the

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

Illustration of spreadsheet files, Illustration of Spreadsheet Files: ...

Illustration of Spreadsheet Files: This reads the numbers in a double vector variable nums and the text in a cell array txt (the xlsread function forever returns the numbers f

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

Illustration of empty vectors , Illustration of Empty vectors: The Emp...

Illustration of Empty vectors: The Empty vectors can also be used to delete elements from the arrays. For illustration, to remove the third element from array, an empty vector

Find minimum and maximum for each row, Find Minimum and Maximum for each ro...

Find Minimum and Maximum for each row To find the maximum (or minimum) for each row, the dimension of 2 (that is how a MATLAB refers to rows) can be identified as the third arg

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

Use of logical vector, Use of logical vector: Determine how many eleme...

Use of logical vector: Determine how many elements in the vector vec were greater than 5, the sum function can be used on the resulting vector isg: >> sum(isg) ans =

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