Question

The numbers 40, 45, 80, 75 and 10 have weights 1, 2, 3, 4 and 5 respectively. What is the weighted mean?

Answer 1

Answer:

given below

Step-by-step explanation:

Weighted Arithmetic Mean = ∑wx∑w

= 40×1+45×2+80×3+75×4+10×51+2+3+4+5

= 40+90+240+300+5015

= 72015

= 48

Answer 2

Answer:

For weighted

40 × 1 =40

45 × 2=90

80× 3=240

75 × 4=300

10 × 5=50

Step-by-step explanation:

40+90+240+300+50÷ 15

Answer is 48 is the weighted mean.