Fórum EMB de Discussões
[  EMB's Main Menu  |  Forum Index  |  Cadastro  |  Search  ]
   
ENGLISH
PORTUGUESE
 LINGUISTICS & CULTURE


Autor:  PPAULO
E-mail:  não-disponível
Data:  31/AGO/2009 9:33 PM
Assunto:  Peso
 
Mensagem: 

     I don´t understood what you mean, are you working with a index or are you trying

to ask us about (weights = pesos).       Because if you are talking about weights, usually one is going to think about weighted averages and all that jazz.

 

  Examples here:

  http://en.allexperts.com/q/Basic-Math-657/Weighted-Average-1.htm
http://en.wikipedia.org/wiki/Weighted_mean

http://mathforum.org/library/drmath/view/52803.html
Course grades: Many teachers will use a "weighted average" when calculating a student's grade in a course. For example, a teacher might say the test average is 60% of the grade, quiz average is 30% of the grade, and a project is 10% of the grade. Suppose Mary got 90 and 78 on the tests; 100, 100 and 85 on the quizzes; and an 81 on the project. Her course grade would be: Test average = (90 + 78)/ 2 = 84 Quiz average = (100 + 100 + 85)/3 = 95 Course grade = .60*84 + .30*95 + .10*81 = 87 Here, the tests carry a "weight" of .60 (or .30 each), the quizzes carry a "weight" of .30 (or .10 each), and the project carries a weight of .10. Note that the test average and the quiz average are not weighted averages, but the course grade is.

 


http://en.allexperts.com/q/Basic-Math-657/2008/4/calculation-weighted-average.htm
can you tell me how to calculate a weightee average for
the problem below.
subject max marks marks scored
maths 200 150       Science 100 50

 


Answer
Hi Dharwesh,

To calculate the weighted average, you need to see which values are the 'weight' and 'score'

Now from the question, 200 and 100 are the weights. As for the score, they are 100 and 50.

Now you can calculate the weighted average by:

1. Multiply each score by its weight:
=> 200(150) + 100(50)


2. Multiply and add the above:
=> 30000 + 5000
= 35000

3. Now, add all the weight to get the total weight.
=> 200 + 100 = 300

4. Divide the 35000 by the total weight
=> 35000/300
= 116.67 <--Answer

PP.


Envie uma resposta
Índice de mensagens


 English Made in Brazil -- English, Portuguese, & contrastive linguistics
Peso  –  ABs  31/AGO/2009, 5:49 PM
Peso  –  Deivis  31/AGO/2009, 6:08 PM
 Peso  –  PPAULO  31/AGO/2009, 9:33 PM
Peso  –  PPAULO  31/AGO/2009, 9:45 PM
Peso  –  ABS  01/SET/2009, 8:02 PM
Peso  –  PPAULO  01/SET/2009, 9:17 PM

Contents of this forum are copy-free.
By S&K