Find the mean, median, mode, variance, standard deviation, and the mean absolute deviation of the following numbers: 76,76,75,86,81,69,81,69,81,76,77,82,79

Question

baldymcgee6 · Answer

Can you find any of them yourself?

anonymous · Answer

Oh my bad. I got the first three. I need help on the rest.

baldymcgee6 · Answer

To find standard deviation, follow these steps:

1. Calculate the mean of your data set.
2. Subtract the mean from each of the data values and list the differences.
3. Square each of the differences from the previous step and make a list of the squares. 
     - In other words, multiply each number by itself.
     - Be careful with negatives. A negative times a negative  makes a positive.
4. Add the squares from the previous step together.
5. Subtract one from the number of data values you started with.
6. Divide the sum from step four by the number from step five.
7. Take the square root  of the number from the previous step. This is the standard deviation. 
     - You may need to use a basic calculator to find the square root.
     - Be sure to use significant figures when rounding your answer.