Question

From the details given below, calculate the five yearly moving averages of the number of students who have studied in a school. Also, plot these and original data on the same graph paper.

Year	$1993$	$1994$	$1995$	$1996$	$1997$	$1998$	$1999$	$2000$	$2001$	$2002$
Number of students	$332$	$317$	$357$	$392$	$402$	$405$	$410$	$427$	$405$	$438$

Answer 1

Computation of five yearly moving average:

Year	No. of students	$5$ yearly Moving Totals =S	$5$ Uearly Moving Average=S/5
$1993$	$332$	-	-
$1994$	$317$	-	-
$1995$	$357$	$1800$	$360.0$
$1996$	$392$	$1873$	$374.4$ or $375$
$1997$	$402$	$1966$	$393.2$ or $393$
$1998$	$405$	$2036$	$407.2$ or $407$
$1999$	$410$	$2049$	$409.8$ or $410$
$2000$	$427$	$2085$	$417.0$
$2001$	$405$	-	-
$2002$	$438$	-	-