Analyze the patterns and derive a formula relating the number of black dots (n) to the number of grey dots (G) for questions 2.11.4, 2.11.5, and 2.11.6.

• For $n=1$, $G=6$
• For $n=2$, $G=10$
• For $n=3$, $G=14$
• For $n=4$, $G=18$
• For $n=5$, $G=22$
• For $n=6$, $G=26$

$10 - 6 = 4$
$14 - 10 = 4$
$18 - 14 = 4$
$22 - 18 = 4$
$26 - 22 = 4$
The common difference is 4, indicating a linear relationship of the form $G = 4n + c$.

Conclusion: The relationship between the number of black dots ($n$) and the number of grey dots ($G$) is given by the formula $\boxed{G = 4n + 2}$.

2.11.5

The flowchart shows "Number of black dots $\rightarrow \times 4 \rightarrow + 2 \rightarrow$ Number of grey dots".
This translates to the formula $G = 4n + 2$.

The formula $G = 4n + 2$ matches the relationship derived from the table in 2.11.4.

Conclusion: This flowchart $\boxed{\text{correctly describes the relationship}}$ between the number of black dots and grey dots from the table.

2.11.6

The flowchart shows "Number of black dots $\rightarrow \times 2 \rightarrow + 1 \rightarrow \times 2 \rightarrow$ Number of grey dots".
This translates to the formula $G = (2n + 1) \times 2$.

The simplified formula $G = 4n + 2$ matches the relationship derived from the table in 2.11.4.

Conclusion: This flowchart $\boxed{\text{correctly describes the relationship}}$ between the number of black dots and grey dots from the table.

2.11.7

The statement is "The number of grey dots = 4 x the number of black dots + 2".
This translates directly to the formula $G = 4n + 2$.

The formula $G = 4n + 2$ matches the relationship derived from the table in 2.11.4.

Conclusion: This statement $\boxed{\text{correctly describes the relationship}}$ between the number of black dots and grey dots from the table.