Final answer:
To compute the average of elements in a two-dimensional array, sum all the elements (considering their frequency if weighted), and divide by the total number of elements. The resulting mean is the average value of the array.
Step-by-step explanation:
The average of the elements of a two-dimensional array can be calculated by summing all the elements of the array and then dividing by the total number of elements. Given the values and their respective multipliers from the array, we sum them up using the formula for the mean:
x = [3+ 4+ (8)(2) + 10 + 11 + 12 + 13 + 14 + (15)(2) + (16)(2) + (17)(2) + 18 + 21 + (22)(2) + (24)(2) + 25 + (26)(2) + (27)(2) + (29)(2) +31 +32 + (33)(2) + (34)(2) + 35 +37 + 40 + (44)(2) +47] / 40 = 23.6.
This process is similar to finding a weighted average, where each value is multiplied by its frequency (or weight) before summing and then divided by the total weight.
To compute the average of the elements of a two-dimensional array, you need to add up all the elements and divide the sum by the total number of elements. Here is a step-by-step explanation:
Add up all the elements of the array.
Count the total number of elements in the array.
Divide the sum by the total number of elements to get the average.
For example, if we have the following array: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], the average would be computed as (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9) / 9 = 5.