Which statistical test is most appropriate for a 2-groups design where participants are exposed to only 1 condition (no overlap)

Find the missing dimension! need asap! tiny square is a =3025 in ²

Ineed the solution to this problem and the steps.

Plz asap what is the range of the cluster in the scatter plot a. between 4 and 8 years of experience b. between $40,000 and $60,000 c. between 6 and 12 years of experience d. between $10,000 and $60,000