1. What happened
The random generation using "Unity.Mathemenatic.Random" generates values out of the supplied boundaries when enabling Burst compilation. The code works as expected using Mono runtime only.

2. How can we reproduce it using the example you attached
Open the project and start the playmode in editor ensuring burst compilation is enabled. The log will be spammed with error messages like the following:

Random generated float not within specified bounds. Generated number is 2326946000

Expected is a float value between -2 and 2. These are the min/max parameters which are specified for the random.NextFloat call. But the returned value seems like an integer number not a float. So followup code works not as desired.

3. Additional info
Excplicitly casting the byte parameters to float solves the issue. Still this should be fixed, because it works in Mono just fine.

Notes:
- Related Forum Thread: [https://forum.unity.com/threads/in-40909-random-generation-fails-for-float-when-using-byte-parameters.1435885/|https://forum.unity.com/threads/in-40909-random-generation-fails-for-float-when-using-byte-parameters.1435885/]
- Mathematics 1.2.6 is not available to be chosen in Jira, choosing the closest version to it
- Testing by CQA was not done as per request of Developers