AS Paper 1 Questions

Students take exams in all their subjects at the end of every year. A procedure is to be written which inputs the marks of a student from the STUDENT file and calculates the mean mark for that student. Produce an algorithm which will carry out the above task. The procedure is to be called MEAN.

PROCEDURE MEAN

TOTAL = 0

NUMBER = 0

WHILE MARKS STILL LEFT, DO

READ MARK

NUMBER = NUMBER + 1

TOTAL = TOTAL + MARK

ENDWHILE

AVERAGE = TOTAL/NUMBER

Mark Points:
-Naming of MEAN in some way
-Initialise Total and Counter
-Use of WHILE loop with suitable condition
-Increment counter
-Cumulative total
-Calculation of average outside loop
(1 per -, max 4)




Next Question

PROCEDURE PRIZE

STUDENT FILE OPEN

MARKHIGHEST = 0

WHILE STUDENTS LEFT, DO

CALL PROCEDURE MEAN

IF STUDENTAVERAGE > MARKHIGHEST

            MARKHIGHEST = CURRENTSTUDENTMARK

            AND PRIZESTUDENT = CURRENTSTUDENT

EQUALMARK = FALSE

ELSEIF 

STUDENTAVERAGE = MARKHIGHEST

            THEN EQUALMARK = TRUE

ENDIF

ENDWHILE

IF EQUALMARK = TRUE

            THEN SHOW MESSAGE "Highest Mark Equal"

ELSE OPEN PRIZES

COPY MARKHIGHEST AND CURRENTSTUDENT

ENDIF

END