Here is a Python program that accomplishes the task:

```python
# Prompt for a file name
fname = input("Enter file name: ")

# Initialize count and total
count = 0
total = 0

# Open the file
with open(fname) as f:
for line in f:
if line.startswith("X-DSPAM-Confidence:"):
count += 1
total += float(line.split(":")[1].strip())

# Compute the average
average = total / count

# Print the average
print("Average spam confidence:", average)
```

This program works by first prompting the user for a file name. It then opens the file and reads through it line by line. If a line starts with "X-DSPAM-Confidence:", it increments a count and adds the floating point number following the colon to a running total. After all lines have been processed, it computes the average by dividing the total by the count and prints the result.

Question

Here is a Python program that accomplishes the task:

```python
# Prompt for a file name
fname = input("Enter file name: ")

# Initialize count and total
count = 0
total = 0

# Open the file
with open(fname) as f:
    for line in f:
        if line.startswith("X-DSPAM-Confidence:"):
            count += 1
            total += float(line.split(":")[1].strip())

# Compute the average
average = total / count

# Print the average
print("Average spam confidence:", average)
```

This program works by first prompting the user for a file name. It then opens the file and reads through it line by line. If a line starts with "X-DSPAM-Confidence:", it increments a count and adds the floating point number following the colon to a running total. After all lines have been processed, it computes the average by dividing the total by the count and prints the result.

Knowee AI · Accepted Answer

Here is a Python program that accomplishes the task:

```python
# Prompt for a file name
fname = input("Enter file name: ")

# Initialize count and total
count = 0
total = 0

# Open the file
with open(fname) as f:
    for line in f:
        if line.startswith("X-DSPAM-Confidence:"):
            count += 1
            total += float(line.split(":")[1].strip())

# Compute the average
average = total / count

# Print the average
print("Average spam confidence:", average)
```

This program works by first prompting the user for a file name. It then opens the file and reads through it line by line. If a line starts with "X-DSPAM-Confidence:", it increments a count and adds the floating point number following the colon to a running total. After all lines have been processed, it computes the average by dividing the total by the count and prints the result.

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