I wrote the chart some time ago, so I don’t have the reference handy anymore; but IIRC, the translation was that a 15⁄16 (93.75%) probability corresponded to 4 bits of information; a 7⁄8 (87.5%) probability to 3 bits; 3⁄4 (75%) to 2 bits; and 1⁄2 (50%) to 1 bit.
I wrote the chart some time ago, so I don’t have the reference handy anymore; but IIRC, the translation was that a 15⁄16 (93.75%) probability corresponded to 4 bits of information; a 7⁄8 (87.5%) probability to 3 bits; 3⁄4 (75%) to 2 bits; and 1⁄2 (50%) to 1 bit.