solve the summation equation

Question

Abhijit Sardar 2021-1-4

回答： samuel okeleye 2021-1-18

can someone help me is solving the summation equation. upper row is the value of N and lower is value k for the given range

Walter Roberson 2021-1-17

We cannot tell what Soi is, or what the relationship is between the summation and the table at the top of the diagram.

Once you have a vector of values you can use code such as

sum(So(K+1:end))

Answer 1

samuel okeleye 2021-1-18

clc;
clear;
n=5;
k=0;
numerator=0;
denominator=0;

If N=5 and K=3

You also initialized the numerator and denominators above so that you can subsequently add numbers.

So=[1;2;3;4;5];

Assuming So contains numbers 1 through 5

for i=(k+1):n
  numerator= numerator+(So(i));
end

The upper part of the equation is calculated above

for i=1:n
  denominator= denominator+(So(i));
end

The lower part of the equation is calculated above

answer=(n/(n-k))*(numerator/denominator);

This is the final equation