Calibration
Opening marks this public case as exposed. Later retries are practice.
Return to the inquiry courseSEPARATE OBJECTIVE CASES
Transfer reasoning to unfamiliar evidence
These eight public cases combine numerical checks with selection, confounding, missingness and evidence communication. They are separate from lesson practice and from review of your project argument.
Each case retains its first response, latest response, up to three attempts and known exposure across imports. Public browser cases are inspectable and cannot establish secure independent examination.
Composition
Opening marks this public case as exposed. Later retries are practice.
Independent averaging
Opening marks this public case as exposed. Later retries are practice.
Discriminating evidence
Opening marks this public case as exposed. Later retries are practice.
Selection and target population
Opening marks this public case as exposed. Later retries are practice.
A competing causal explanation
Opening marks this public case as exposed. Later retries are practice.
Missing observations are evidence about the method
Opening marks this public case as exposed. Later retries are practice.
Communicate scope rather than certainty
Opening marks this public case as exposed. Later retries are practice.
Save a science backup or import one
Science work is stored locally in this browser, separately from mathematics and AI. It does not sync automatically. Use this science-only backup; this checkout's older all-subject export does not include science.
A legacy file is available only when the complete snapshot fits the 36 MB limit. For larger snapshots, prepare a complete file set below; never discard notebooks to make a smaller file.
Matching imported notebook drafts replace their current drafts. Omitted lessons and known first attempts remain. Export your current work first if you want to retain both drafts.
Complete file sets and course backups
A file set can hold more work than one science file. Keep its manifest and every part together. Each file is limited to 36 MB. This format needs this version of LearnAI or a compatible newer version; older versions can use only the legacy single-file backup above.
The set includes every saved science course and global continuation at this moment. Later edits need a new export. A conflicting tab exports its own visible work, which may differ from saved work in another tab.
0 file(s) selected. File order and filenames do not determine identity. Missing, changed or conflicting parts block the entire restore; no good part is applied by itself.
Science storage: loading. No account or remote computation is required.