An odd way to do something.... Help?

[4sak3nX]

So im have to make a test averager that allows the user to determine how many test to be used.

Below is the exact terms of what im supposed to do:

"Create a test marks averager, that will work for any number of tests. It should first ask for the number of tests to be averaged, then ask for each of the test marks. It then displays the average of the tests."

So far this is all i have for the code...:

Turing:

var count : real var answer : real var mark : real put "Please enter the amount of tests to be averaged: " .. get count for x : 1 .. count     put "Please enter the test mark: " ..     get mark end for

what am i supposed to do next?

[DemonWasp]

You have to calculate an average. Get a piece of paper and pencil, so you can do this on paper (trust me, this makes it easier than doing it on the computer).

An average is calculated as the sum of a series of numbers, divided by the number of numbers. Or:

code:

a + b + c + d + e + ... / N

Where there are N of a, b, c, d, e ...

Note that you do not have to store all of a, b, c, d, e, ... , you only have to store their sum, because eventually that's all you need.

So, keep a running total of the marks input so far, until the user is done inputting marks. Divide that total by the number of marks input.

[Turing_Gamer]

(Test 1 + Test 2 + Test 3 ... + Test N) / Number of Tests

Very simple. It is like finding the median.

[USEC_OFFICER]

You mean the mean. The median is the value which is closest to the middle. The mode is the value that appears the most.

[Turing_Gamer]

Sorry I meant that...

Here is how you can construct it

Turing:

for i : 1 .. count     sum := sum + test (i) end for Your_Average := sum / count put " Your average of " + intstr (count) + " test(s) is " + intstr (Your_Average) + "!!!"

Is there something called 'realstr'?

[sportygal1994]

I would solve it this way.
Of course declard them all first, and initizalize the total at 0.

Turing:

for x:1..number get mark total:=total+mark end for put " the average is ", total/number

This I believe is a summing notation. Not sure what the official name is, but it should work.

[chrisbrown]

Summation notation is the consice way of writing what this program calculates. It would be expressed as: