Answer:
- import math
-
- def standard_deviation(aList):
- sum = 0
- for x in aList:
- sum += x
-
- mean = sum / float(len(aList))
-
- sumDe = 0
-
- for x in aList:
- sumDe += (x - mean) * (x - mean)
-
- variance = sumDe / float(len(aList))
- SD = math.sqrt(variance)
-
- return SD
-
- print(standard_deviation([3,6, 7, 9, 12, 17]))
Explanation:
The solution code is written in Python 3.
Firstly, we need to import math module (Line 1).
Next, create a function standard_deviation that takes one input parameter, which is a list (Line 3). In the function, calculate the mean for the value in the input list (Line 4-8). Next, use the mean to calculate the variance (Line 10-15). Next, use sqrt method from math module to get the square root of variance and this will result in standard deviation (Line 16). At last, return the standard deviation (Line 18).
We can test the function using a sample list (Line 20) and we shall get 4.509249752822894
If we pass an empty list, a ZeroDivisionError exception will be raised.
<span>The answer is CTRL + A, this selects whole worksheet (A means all). In computing, a Control key is a transformer key which, when pushed in combination with one more key, achieves a singular operation (for example, Ctrl + A; like the Shift key, the Control key infrequently achieves any purpose when pushed by itself.</span>
Answer:
Rats are not smelly animals. They are actually extremely clean animals and should not smell bad at all. ... A sick rat odor will smell like infection. Most likely if you are smelling your rats it is due to the cage and bedding not being cleaned often enough or from using the wrong type of litter and bedding.
Explanation:
A mean is another word for average (kind of)
