Answer question 4.2.1 by determining the probability.

The capacity of a cinema-style venue is 400 guests. A function is suitable if the number of guests is less than or equal to 400.

List of guests for 2023: $180, 350, 400, 200, 215, 90, 150, 230, 160$.
All 9 of these values are $\le 400$.

List of guests for 2022: $360, 160, 300, 70, 160, 200, 240$.
All 7 of these values are $\le 400$.

Total number of functions = $9 (\text{for } 2023) + 7 (\text{for } 2022) = 16$.
Number of functions suitable for a cinema-style venue = $9 + 7 = 16$.

The probability is the number of suitable functions divided by the total number of functions.

As a decimal, the probability is $\boxed{1.0}$.

First, list the number of guests for 2023 in ascending order:
$90, 150, 160, 180, 200, 215, 230, 350, 400$
There are 9 data points. The median is the middle value, which is the $\frac{9+1}{2} = 5$-th value.
The 5th value in the ordered list is 200.
The median number of guests accommodated during 2023 is $\boxed{200}$.

The number of guests for 2022 are: $360, 160, 300, 70, 160, 200, 240$.
To find the range, identify the maximum and minimum values.
Maximum number of guests in 2022 = 360.
Minimum number of guests in 2022 = 70.

The number of guests for 2023 are: $180, 350, 400, 200, 215, 90, 150, 230, 160$.
Maximum number of guests in 2023 = 400.
Minimum number of guests in 2023 = 90.

The manager stated that the range for 2022 is the same as the range for 2023.
Range (2022) = 290.
Range (2023) = 310.
Since $290 \neq 310$, the ranges are not the same.
Therefore, the manager's statement is $\boxed{\text{not valid}}$.