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Write a Python program that takes a list of numbers as input from the user and prints the sum, average, minimum, and maximum of the numbers in the list.
Answer:
Answer by student
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def my_sum (numbers): total = 0 for num in numbers: total += num return total
def my_min (numbers): minimum = numbers[ 0 ] for num in numbers: if num < minimum: minimum = num return minimum
def my_max (numbers): maximum = numbers[ 0 ] for num in numbers: if num > maximum: maximum = num return maximum
user_input = input( "Enter the numbers separated by commas: " ) numbers = [float(num) for num in user_input.split( "," )] total = my_sum(numbers) average = total / len(numbers) minimum = my_min(numbers) maximum = my_max(numbers) print( "The sum of the numbers is" , total) print( "The average of the numbers is" , average) print( "The minimum of the numbers is" , minimum) print( "The maximum of the numbers is" , maximum) |
Detailed answer by teachoo
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- The question asks us to write a Python program that takes a list of numbers as input from the user and prints some statistics about them, such as sum, average, minimum, and maximum.
- To do this, we need to follow these steps:
- First, we need to get the user input as a string. We can use the input function for this. We can also prompt the user to enter the numbers separated by commas, so that we can easily split them later.
- Next, we need to convert the user input into a list of numbers. We can use the split method to break the string into substrings based on a delimiter, which in this case is a comma. Then, we can use a list comprehension to loop over each substring and convert it into a floating-point number using the float function. This will give us a list of numbers that we can store in a variable called numbers .
- Then, we need to calculate some statistics about the list of numbers. We can write our own functions for this purpose:
- The my_sum function takes a list of numbers and returns their total. It does this by initializing a variable called total to zero and then looping over each number in the list and adding it to total . Finally, it returns total .
- The my_min function takes a list of numbers and returns the smallest one. It does this by initializing a variable called minimum to the first element of the list and then looping over each number in the list and comparing it with minimum . If it finds a number that is smaller than minimum , it updates minimum with that number. Finally, it returns minimum .
- The my_max function takes a list of numbers and returns the largest one. It does this by initializing a variable called maximum to the first element of the list and then looping over each number in the list and comparing it with maximum . If it finds a number that is larger than maximum , it updates maximum with that number. Finally, it returns maximum .
- To calculate the average of the numbers, we can divide their sum by their length. We can store these values in variables called total , average , minimum , and maximum respectively.
- Finally, we need to print the results using the print function. We can use string concatenation or formatting to display the values along with some messages.
So, the final code is:
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# A function that returns the sum of a list of numbers def my_sum (numbers): # Initialize a variable to store the sum total = 0 # Loop over each number in the list and add it to the sum for num in numbers: total += num # Return the sum return total
# A function that returns the minimum of a list of numbers def my_min (numbers): # Initialize a variable to store the minimum as the first element of the list minimum = numbers[ 0 ] # Loop over each number in the list and compare it with the minimum for num in numbers: # If the number is smaller than the minimum, update the minimum if num < minimum: minimum = num # Return the minimum return minimum
# A function that returns the maximum of a list of numbers def my_max (numbers): # Initialize a variable to store the maximum as the first element of the list maximum = numbers[ 0 ] # Loop over each number in the list and compare it with the maximum for num in numbers: # If the number is larger than the maximum, update the maximum if num > maximum: maximum = num # Return the maximum return maximum
# Ask the user to enter the numbers separated by commas user_input = input( "Enter the numbers separated by commas: " )
# Convert the user input into a list of numbers numbers = [float(num) for num in user_input.split( "," )]
# Calculate the sum, average, minimum, and maximum of the numbers using our own functions total = my_sum(numbers) average = total / len(numbers) minimum = my_min(numbers) maximum = my_max(numbers)
# Print the results print( "The sum of the numbers is" , total) print( "The average of the numbers is" , average) print( "The minimum of the numbers is" , minimum) print( "The maximum of the numbers is" , maximum) |
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