https://peterattiamd.com/confidence/ - The only numeric calibration test that I know of (asks you to provide a “95% confidence interval)!! :) However, you’ll need to grade it yourself :(
See also quantifiedintuitions.org/calibration
Also https://www.quantifiedintuitions.org/pastcasting may make sense as an exercise
See also quantifiedintuitions.org/calibration
Also https://www.quantifiedintuitions.org/pastcasting may make sense as an exercise