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I'm afraid, no. You've been shown in your other thread (https://www.unix.com/303040608-post2.html) that division by 0 is possible in your context and the reason therefor. And, looking at your sample...

Dear Eric7giants,

Thanks for posting these programming challenges.

Cross language coding and lateral thinking is really important to increase cognitive skills and technical abilities.

Your task is pretty basic. You will find a lot of examples if you...

... search google for "perl read from stdin" ...
... read the documentation for the functions, e. g. perldoc -f split

I do...

Your turn next:
I got your awk code to run against a dummy input file. I cannot see why your sample ran for you - however after fixing syntax I got an awk source file t.awk. t.lis is the file...

In the END section, you're using b as the loop variable but use $1 for building the indices. Won't fly.
And, if one or more of the categories don't exist for a student, their total array element...

why are you using total in 2 diff context?
total[$1] += $5
and
total=Homework+Lab+Final+Quiz+Survey
Also sum[$1] += $4 is indexed by a single index - not by $1$2

In the shell you can do
awk -f average1.awk "$1" | (read h; echo "$h"; sort)
Within the awk script you can do something like
NR==1 {print}
... {print | "sort"}

You didn't say so in your spec...

How about

awk '
BEGIN {FS = ","
}
{for (i=1; i <= NF; i++) {if ($i<10) T = $i
else ...

Try
awk -F, '
{for (i=1; i <= NF; i++) print $i<10?$i:10
}
' file
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