根据给定的平均值和模式值计算中位数

原文:https://www . geeksforgeeks . org/从给定值计算中值和模式/

给定两个整数表示和模式，代表随机一组数据的表示和模式，任务是计算该组数据的中值。

输入:均值= 3，模式= 6 T3】输出: 4

输入:均值= 1，模式= 1 输出 : 1

逼近:利用这组数据的均值、模式、中值之间的数学关系，可以解决给定的问题。下面是它们之间的关系:

=> (mean - mode) = 3*(mean - median)

=> median = \frac{(2 * mean + mode)}{3}

所以思路是在给定均值和模式的情况下，用上面的公式求数据的中值。

下面是上述方法的实现:

C++

// C++ program for the above approach

#include <bits/stdc++.h>
using namespace std;

// Function to find the median of a
// group of data with given mean and mode
void findMedian(int Mean, int Mode)
{
    // Calculate the median
    double Median = (2 * Mean + Mode) / 3.0;

    // Print the median
    cout << Median;
}

// Driver Code
int main()
{
    int mode = 6, mean = 3;
    findMedian(mean, mode);

    return 0;
}

Java 语言(一种计算机语言，尤用于创建网站)

// Java program for the above approach
import java.util.*;

class GFG{

// Function to find the median of a
// group of data with given mean and mode
static void findMedian(int Mean, int Mode)
{

    // Calculate the median
    double Median = (2 * Mean + Mode) / 3.0;

    // Print the median
    System.out.print((int)Median);
}

// Driver code
public static void main (String[] args)
{
    int mode = 6, mean = 3;

    findMedian(mean, mode);
}
}

// This code is contributed by code_hunt

Python 3

# Python3 program for the above approach

# Function to find the median of
# a group of data with given mean and mode
def findMedian(Mean, Mode):

    # Calculate the median
    Median = (2 * Mean + Mode) // 3

    # Print the median
    print(Median)

# Driver code
Mode = 6
Mean = 3

findMedian(Mean, Mode)

# This code is contributed by virusbuddah

C

// C# program for the above approach
using System;
class GFG
{

// Function to find the median of a
// group of data with given mean and mode
static void findMedian(int Mean, int Mode)
{

    // Calculate the median
    double Median = (2 * Mean + Mode) / 3.0;

    // Print the median
    Console.Write(Median);
}

// Driver Code
public static void Main()
{
    int mode = 6, mean = 3;
    findMedian(mean, mode);
}
}

// This code is contributed by ipg2016107.

java 描述语言

<script>

// Javascript program for the above approach 

// Function to find the median of a
// group of data with given mean and mode
function findMedian(Mean, Mode)
{

    // Calculate the median
    var Median = (2 * Mean + Mode) / 3.0;

    // Print the median
    document.write(Median);
}

// Driver Code
var mode = 6, mean = 3;

findMedian(mean, mode);

// This code is contributed by Ankita saini

</script>

Output: 

4

时间复杂度:O(1) T5辅助空间:** O(1)

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