Question

Discrete Series
5 Find the average for following discrete series using shortcut method.
x- 3,5,6,7,8
f-2,4,3,8,10​

Answer 1

Answer:

AVG=1.074

Explanation:

mean=ex/f

mean=3+5+6+7+8/2+4+3+8+10

mean=29/27

mean=1.074

Answer 2

Answer:

average = 6.962

Explanation:

X = 3,5,6,7,8

F = 2,4,3,8,10

Formula = X=A+sum of FD÷sum of F

X = 3,5,(6A),7,8

X = 3,5,(6A),7,8F = 2+4+3+8+10=27

X = 3,5,(6A),7,8F = 2+4+3+8+10=27D = X-A

X = 3,5,(6A),7,8F = 2+4+3+8+10=27D = X-A D = -3,-1,0,1,2 = -1

X=6+26÷27

X=6.962