find weighted AM
item: 1 2 3 4 5
Amt: 35 27 65 47 30
weight: 3 7 1 4 9
Answers
Answered by
1
Answer:
Answer
Items
Number of items (w)
Cost of items (x)
xw
Powder
2
45
90
Soap
4
12
48
Pen
5
15
75
Instrument box
4
25.50
102
Total
15
312
Then, weighted arithmetic mean =
Σw
Σxw
=
15
312
=20.8
Similar questions