Area segment no.

Area (A)

$\overline{x}$

$A\overline{x}$

1

0.5 × 0.3 × 1 = 0.150

0.670

0.100

2

2.6 × 0.3 = 0.780

2.300

1.748

3

0.3 × 0.4 = 0.120

3.800

0.456

4

0.5 × 0.4 × 0.2 = 0.040

3.866

0.154

5

1.4 × 0.5 = 0.700

4.750

3.325

6

0.6 × 0.5 = 0.300

5.750

1.725

7

0.5 × 0.5 × 0.5 = 0.125

5.833

0.729

8

1 × 1 = 1.000

6.500

6.500

9

0.5 × 1 × 1 = 0.500

7.330

3.665

${\displaystyle \sum A}$ = 3.720

${\displaystyle \sum A\overline{x}}$ = 18.400