lows. whether the probability is positive (qualitative question). and compute an appectornabon of the probability (quantitative question). 6 I Yin. Pabserlicti/dci!i0 1073/pnai 0709640104 Fooiline Author EFTA_R1_01954783 EFTA02674314 o+b A B Fig. 3. Intonation d rrgeoduction with matrix d ) The red