Consider the following $32$-bit floating-point representation scheme as shown in the format below :
A $1$ bit sign field
A $24$ bit fraction field
and a $7$ bit exponent field (in excess-$64$ signed integer representation, with 16 being the base of exponentiation)
How to represent the decimal value $-7.5$ as a normalized floating point number in the given format?
I am not getting why this question assumes $16$ being the base of exponentiation, as I have always assumed base $2$?