This is what it does in the backend in Google Sheets = (A1 * B1) + (A2 * B2) + (A3 * B3) + (A4 * B4) + (A5 * B5) So if you have the below formula =SUMPRODUCT(A1:A5, B1:B5) It will then add up all these individual products to give the final result. This could be a range of cells, a list of values, or an individual column name.įor example, if we have two ranges A1:A5 and B1:B5, the function: SUMPRODUCT(A1:A5, B1:B5) will take each value of the first range (A1:A5) and multiply it with the corresponding value in the second range (B1:B5). The syntax for the SUMPRODUCT function is as follows: SUMPRODUCT(array1, array2. The SUMPRODUCT function lets you find the sum of products of a set of variable values. The first method involves the use of the Google Sheets SUMPRODUCT function. How to Weight Grades in Google Sheets Using the SUMPRODUCT Function For both methods, we will use the following data set: We will take a look at how to use these two functions individually. Google sheets have a few good functions that can help you calculate the weighted average of values in your data: How to Calculate Weighted Average In Google Sheets This value gives a much more accurate picture of how well the student performed since it didn’t just consider the scores in individual tests, but also the importance of each score. So in this student’s case, the weighted average is calculated as follows: Weighted average = / (20 + 30 +50) Dividing this sum by the sum of all the weights.Multiplying each test score with its corresponding weightage.To calculate the weighted average if the scores are weighted as above, on the other hand, it would take into account the weightage of the individual tests. Therefore, it will not give an accurate representation of the student’s performance. In such cases, simply summing up the scores and dividing by 3 would not take into consideration the importance (or weightage) of each exam. The class test is less important, the mid-term carries a little more importance, while the final exam carries the most importance. Here, each test carries a different amount of importance or contribution to the final grade. When to Use Weighted AverageĪ student may take three different tests (say, a class test, a mid-term, and a final). The weighted average is often used in analyzing class performance, accounting, and statistical analytic operations. In this way, it gives a more accurate picture of the data than regular arithmetic mean. The weighted average is an arithmetic mean calculated while taking into account the importance of elements in the data. What Is the Difference Between Average and Weighted Average?.Is Google Sheets Weighted Average the Same as SUMPRODUCT?.How Do You Calculate Weighted Average in Google Sheets?.When Should You Not Use AVERAGE.WEIGHTED in Google Sheets?. Finding the Weighted Average using AVERAGE.WEIGHTED Google Sheets function.How to Weight Grades in Google Sheets Using the SUMPRODUCT Function.How to Calculate Weighted Average In Google Sheets.
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