Below is the frequency distribution table of the mid-term exam scores of 35 students in MSPharm.

answer the following question base on the data given.

Class Interval	Frequency (f)
46 - 48	1
43 - 45	1
40 - 42	2
37 - 39	3
34 - 36	3
31 - 33	4
28 - 30	7
25 - 27	5
22 - 24	3
19 - 21	2
16 - 18	2
13 - 15	1
10 - 12	1
	n = 35

Class Interval	f	X (Midpoint)	fX	Class Boundaries	cf<	cf>
46 - 48
43 - 45
40 - 42
37 - 39
34 - 36
31 - 33
28 - 30
25 - 27
22 - 24
19 - 21
16 - 18
13 - 15
10 - 12

Find:

1. Mean =x =fXin=

1. Median

x= LCB +n2 - cf

where: LCB = lower class boundary of the median class

n = sample size

cf<_pre = cumulative frequency preceding the median class

f = frequency of the median class

i = interval

1. s (standard deviation)

s² =nfx2- fx2n2- n =

1. coefficient of variation

CV =sMean x 100% =