Section I: Multiple choice $-1$ point each

$1.$ What is the decimal equivalent of the IEEE$-754$ floating point number:

$11000000010010000000000000000000$

a$.-17\mathrm{.}0$

b$.-8\mathrm{.}5$

c$.-4\mathrm{.}25$

d$.-2\mathrm{.}125$

e$.-1\mathrm{.}0625$

f$.-3\mathrm{.}125$