find the standard deviation of all values in a map in python

You can use the math and statistics modules to calculate the standard deviation of all values in a dictionary in Python. Here's how you can do it:

main.py
import math
import statistics

# sample dictionary
my_dict = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}

# calculate the mean of all values in the dictionary
mean = statistics.mean(my_dict.values())

# calculate the standard deviation of all values in the dictionary
std_dev = math.sqrt(sum(pow(val - mean, 2) for val in my_dict.values()) / len(my_dict))

print("Standard deviation of dictionary values is: ", std_dev)
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This code calculates the mean of all values in the dictionary using the mean() function from the statistics module. It then calculates the sum of the squared differences between each value and the mean using a generator expression, and divides this by the length of the dictionary. Finally, it takes the square root of this value using the sqrt() function from the math module to get the standard deviation.