What's the fixed bias value used for the exponent field in IEEE single-precision floating point standard? 15 127 256 1023 QUESTION 3 What's the actual exponent (in decimal) in the single-precision floating point binary 01000001100010000000000000000000 131 -125 04 O 3 QUESTION 4 What's the actual exponent (in decimal) for the following single-precision floating point binary representation? 00000101100010000011000000000000 -11 O 11 138 -116