Java program to calculate the average of N numbers. Here is the code to calculate the average of N numbers or average of 2 or 3 numbers. The following code has been written in three different ways, using standard values, using do while, recursion, command line arguments, creating a. Java program to calculate the average of marks. Here we cover five simple ways to find out the average of marks in Java programming. If you know the basics of coding, you can even write more than 5+ ways. However, as a newbie, we share the program in 5 different ways. Do check it out.
Mean, Median, and Mode
What can we learn from looking at a group of numbers?
In Machine Learning (and in mathematics) there are often three values that interests us:
- Mean - The average value
- Median - The mid point value
- Mode - The most common value
Example: We have registered the speed of 13 cars:
speed = [99,86,87,88,111,86,103,87,94,78,77,85,86]
What is the average, the middle, or the most common speed value?
Mean
The mean value is the average value. Mplab icd 3 driver windows 10.
To calculate the mean, find the sum of all values, and divide the sum by the number of values:
(99+86+87+88+111+86+103+87+94+78+77+85+86) / 13 = 89.77
The NumPy module has a method for this. Learn about the NumPy module in our NumPy Tutorial.
Example
Use the NumPy
mean()
method to find the average speed: import numpy
speed = [99,86,87,88,111,86,103,87,94,78,77,85,86]
x = numpy.mean(speed)
print(x)
Run example »speed = [99,86,87,88,111,86,103,87,94,78,77,85,86]
x = numpy.mean(speed)
print(x)
Median
The median value is the value in the middle, after you have sorted all the values:
77, 78, 85, 86, 86, 86,
87
, 87, 88, 94, 99, 103, 111
It is important that the numbers are sorted before you can find the median.
The NumPy module has a method for this:
Example
Use the NumPy
median()
method to find the middle value: import numpy
speed = [99,86,87,88,111,86,103,87,94,78,77,85,86]
x = numpy.median(speed)
print(x)
Try it Yourself »speed = [99,86,87,88,111,86,103,87,94,78,77,85,86]
x = numpy.median(speed)
print(x)
If there are two numbers in the middle, divide the sum of those numbers by two.
77, 78, 85, 86, 86,
86, 87
, 87, 94, 98, 99, 103
(86 + 87) / 2 =
86.5
Example
Using the NumPy module:
import numpy
speed = [99,86,87,88,86,103,87,94,78,77,85,86]
x = numpy.median(speed)
print(x)
Try it Yourself »speed = [99,86,87,88,86,103,87,94,78,77,85,86]
x = numpy.median(speed)
print(x)
Mode
The Mode value is the value that appears the most number of times:
99,
86
, 87, 88, 111,
86
, 103, 87, 94, 78, 77, 85,
86
= 86
The SciPy module has a method for this:
Example
Use the SciPy
mode()
method to find the number that appears the most: from scipy import stats
speed = [99,86,87,88,111,86,103,87,94,78,77,85,86]
x = stats.mode(speed)
print(x)
Try it Yourself »speed = [99,86,87,88,111,86,103,87,94,78,77,85,86]
x = stats.mode(speed)
print(x)
Chapter Summary
The Mean, Median, and Mode are techniques that are often used in Machine Learning, so it is important to understand the concept behind them.
Well before starting, let’s look at the basic defention and how we find mean, median and mode. Both these are 3 variables to find the average value or an approximate value of a list, but yet they have different values as they are based on 3 different concepts
Concepts of mean, median and mode
What is mean ?
Mean is same as average. The mean is found by adding up all of the given data and dividing by the number of elements.
Example: Mean of 1,2,3,4,5 is
(1+2+3+4+5 )/5 = 15/3 = 3 Autocad 2019 serial number.
(1+2+3+4+5 )/5 = 15/3 = 3 Autocad 2019 serial number.
Condenser design calculation pdf reader. What is Median ?
The median is the middle number in an ordered list (ascending or descending). First you arrange the numbers in orders in ascending order, then you find the middle number and save it as median
Example:
1 2 3 4 5
1 2 3 4 5
How To Find Mean Mode Median
Median is 3 Jp1081b driver windows 10.
What Is The Median Mean And Mode
Camtasia studio 8 serial key 2019. What is Mode ?
Mode is the element which happens most number of time in the list. If no element happens more than once, all elements are considered as mode.
Algorithm
- Start
- Declare an array a[20], sum =0,i=0,j=0,z=0
- Read number of terms n
- Repeat step 5 & 6 while (i<n)
- sum=sum+a[i]
- next i
- mean=sum/n
- if (n%2=0)
median=(a[n/2] +a[n/2-1])/2
else
median=a[n/2] - print mean and median
- repeat step 11 & 12 when i=0 to n, j=0 to i
- if a[i]=a[j], then b[i]++
- if b[i]>z, then z=b[i]
- For i=0 to n if b[i]=z, print b[i]
- end
Program
main()
float sum=0, t,mean,medn,mod;
printf(“n Enter the no. of elements (Max 20)n”);
printf(“Enter the elementsn”);
{scan (“%d”,&a[i]);}
for(i=0;i
printf(“Sum: %f”,sum);
}
for(i=0;i
{ if (a[i]>a[j])
}
medn=(a[n/2]+a[(n/2)-1])/2;
medn=a[n/2];
for(i=0;i
{ if (a[i]a[j])
}
![Mode Mode](https://i.pinimg.com/736x/df/3e/22/df3e22dfb5b63e5eda8ec825e4c06134--php-products.jpg)
{ if (b[i]>z)
}
Mean Median Mode Formula
printf(“Mean :%f n Median : %f n Mean : “, mean, medn);
{ if (b[i]z)
}