timozy95
08.10.2019 •
Mathematics
(08.06)the following data show the height, in inches, of 11 different garden gnomes:
2 9 1 23 3 7 10 2 10 9 7
after removing the outlier, what does the mean absolute deviation of this data set represent?
on average, the height of a garden gnome varies 3.2 inches from the mean of 7 inches.
on average, the height of a garden gnome varies 3.6 inches from the mean of 6 inches.
on average, the height of a garden gnome varies 3.2 inches from the mean of 6 inches.
on average, the height of a garden gnome varies 3.6 inches from the mean of 7 inches.
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Ответ:
The correct statement is:
On average, the height of a garden gnome varies 3.2 inches from the mean of 6 inches.
Step-by-step explanation:
We are given a data of 11 gardens as:
2 9 1 23 3 7 10 2 10 9 7
Now on removing the outlier i.e. 23 (since it is the very large value as compared to other data points) the entries are as follows:
x |x-x'|
2 4
9 3
1 5
3 3
7 1
10 4
2 4
10 4
9 3
7 1
Now mean of the data is denoted by x' and is calculated as:
Hence, Mean(x')=6
Now,
∑ |x-x'|=32
Now mean of the absolute deviation is:
This means that , On average, the height of a garden gnome varies 3.2 inches from the mean of 6 inches.
Ответ:
-1.4 or -7/5
Step-by-step explanation:
Slope=y2-y1/x2-x1
Your two points are:
(-3,2) and (2,-5)
1) Plug in the values into the slope formula:
(-5-2)/(2--3)
2) Simplify:
-7/5
3) Write as decimal: - Optional
-1.4