does anybody know how to find the mean absolute deviation and the steps
you keep asking that question. Does your text not explain? You can google that phrase and come up with a fistful of articles on the topic.
Yes, I can help you with finding the mean absolute deviation (MAD) and explaining the steps. The MAD is a statistical measure that describes the average absolute difference between each data point and the mean of the data set.
Here are the steps to calculate the mean absolute deviation:
1. Collect your data set: Gather all the values for which you want to find the MAD. Let's say we have a data set with n values.
2. Calculate the mean: Find the average of all the data points by summing them up and dividing the total by n. Let's call this value "mean."
3. Calculate the absolute deviation: Subtract the mean from each individual data point, disregarding the sign (make all values positive). This will give you the absolute deviation for each data point.
4. Sum the absolute deviations: Add up all the absolute deviation values calculated in the previous step.
5. Divide by the number of data points (n): Divide the sum of absolute deviations by the number of data points in the set (n). This will give you the mean absolute deviation.
Mathematically, the formula for calculating MAD is:
MAD = ∑ |x - mean| / n
Where:
MAD = Mean Absolute Deviation
∑ = Summation symbol
x = Individual data points
mean = Mean of the data set
n = Number of data points
By following these steps and using the formula, you can calculate the mean absolute deviation for any given data set.