If you want to change selection, open document below and click on "Move attachment"
Open it where the returns are centered (central tendency);
how far returns are dispersed from their center (dispersion);
whether the distribution of returns is symmetrically shaped or lopsided (skewness); and 
Summary
status
not learned
measured difficulty
37% [default]
last interval [days]
repetition number in this series
0
memorised on
scheduled repetition
scheduled repetition interval
last repetition or drill
Details
No repetitions
Discussion
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