The freq for the allele for cyctic fib, an autosomal recesive trait is 1 in 2500 among white americans. what is the heterozygote freq?

from destroyer 160 bio.

so since the q says ALLELE i thought 1/2500 would represent, but according to the solutions it represents q^2. I thought when they give you a PERCENT of a POPULATION that you set that percent to q^2.

someone pleaseeee help!!

i think when they refer it as a trait, then 1/2500 would have the recessive disorder. Maybe just bad wording who knows? I'm due to take my test tomorrow too =(