-6 I'm pretty sure, any number that's positive times a negative is a negative, so just do 2x3 and then add the negative.
Answer:
The mean absolute deviation of this data
is
.
Step-by-step explanation:
The mean absolute deviation (MAD) of a dataset is the average distance between each data point and the mean. It gives us an idea about the variability in a dataset.
The steps to find the MAD include:
- find the mean (average)
- find the difference between each data value and the mean
- take the absolute value of each difference
- find the mean (average) of these differences
To find the mean absolute deviation of this data
you must
Step 1: Calculate the mean.
![\:mean=\bar{x}= \frac{9+13+43+55}{4} =\frac{120}{4}=30](https://tex.z-dn.net/?f=%5C%3Amean%3D%5Cbar%7Bx%7D%3D%20%5Cfrac%7B9%2B13%2B43%2B55%7D%7B4%7D%20%3D%5Cfrac%7B120%7D%7B4%7D%3D30)
Step 2: Calculate the distance between each data point and the mean and take the absolute value of each difference
.
![|9-30|=21\\|13-30|=17\\|43-30|=13\\|55-30|=25](https://tex.z-dn.net/?f=%7C9-30%7C%3D21%5C%5C%7C13-30%7C%3D17%5C%5C%7C43-30%7C%3D13%5C%5C%7C55-30%7C%3D25)
Step 3: Add the distances together.
![21+17+13+25=76](https://tex.z-dn.net/?f=21%2B17%2B13%2B25%3D76)
Step 4: Divide the sum by the number of data points.
![MAD = \frac{76}{4} =19](https://tex.z-dn.net/?f=MAD%20%3D%20%5Cfrac%7B76%7D%7B4%7D%20%3D19)
Answer: 75
Step-by-step explanation:
1 1/2 meters = 3/2 meters = 1.5 meters = 150 centimeters
225 centimeters - 150 centimeters = 75 centimeters
Answer:
attached is the answer :)
Step-by-step explanation:
Answer:
C
Step-by-step explanation: