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Python – Get Random Range Average
  • Last Updated : 28 Jul, 2020

Given range and Size of elements, extract random numbers within a range, and perform average of it.

Input : N = 3, strt_num = 10, end_num = 15
Output : 13.58
Explanation : Random elements extracted between 10 and 15, averaging out to 13.58.

Input : N = 2, strt_num = 13, end_num = 18
Output : 15.82
Explanation : 2 elements average to 15.82 in this case.

Method #1 : Using loop + uniform()
The combination of above functions can be used to solve this problem. In this, we perform the task of extracting numbers using uniform() and loop is used to perform addition of numbers. The average is computed at end by dividing by size.




# Python3 code to demonstrate working of 
# Random Range Average
# Using loop + uniform()
import random
  
# initializing N
num = 4
  
# Initialize strt_num
strt_num = 15
  
# Initialize end_num
end_num = 60
  
# Using loop + uniform()
res = 0.0
for _ in range(num):     
      
    # performing summation of range elements
    res += random.uniform(strt_num, end_num)
  
# performing average
res = res / num
  
# printing result 
print("The average value : " + str(res)) 
Output :



The average value : 42.980287235196116

 

Method #2 : Using sum() + uniform() + generator expression
The combination of above functions can be used to solve this problem. In this, we perform the task of performing average using sum() to compute sum() and whole logic is encapsulated in one-liner using generator expression.




# Python3 code to demonstrate working of 
# Random Range Average
# Using sum() + uniform() + generator expression
import random
  
# initializing N
num = 4
  
# Initialize strt_num
strt_num = 15
  
# Initialize end_num
end_num = 60
  
# Using sum() + uniform() + generator expression
# shorthand, using generator expression to form sum and division by Size
res = sum(random.uniform(strt_num, end_num) for _ in range(num)) / num
  
# printing result 
print("The average value : " + str(res))
Output :
The average value : 42.980287235196116

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