Exposure - Being exposed to ionizing radiation, radioactive material, or other hazardous materials. Radiation exposure is measured in Roentgens (R) or the subunit milliroentgens (mR). For practical. purposes, one roentgen is equal to one rem.
A credit score of 760-799 is considered good to great credit, and will typically result in interest rates and approval rates that a credit score in the 800-850+ bucket would yield. The only difference might be a few more pricing incentives at the 800-850+ range, and a more thorough credit check.
FICO credit scores range from 300-850. FICO no longer releases the median nationwide score, but as of April 2014, the national median FICO score was 692. Keeping that median in mind, a 620 minimum is fairly borrower-friendly.