Peterson and peterson studied how well participants can remember groups of three letters (like brt, qsd) after various delays. they found that participants remembered an average of 80 percent of the groups after 3 seconds but only 10 percent after 18 seconds. they hypothesized that this decrease in performance was due to but later research showed that it was actually due to

The united states constitution gives the the power to regulate interstate commerce.

1. the responsibilities of the u.s. federal reserve system include overseeing the banking system and regulating the quantity of money in the economy setting the level of real interest rates working with congress to devise a financial plan for the country and execute the president's orders calculating and reporting the unemployment rate 2. to increase the supply of money when the economy is weak, the fed closes banks reduces inflation sells bonds buys bonds 3. the federal funds rate is the short-term interest rate that banks charge their best customers when borrowing banks earn on savings accounts with the fed banks charge each other when borrowing or lending to each other the fed charges banks when borrowing 4. when the fed increases the money supply and consequently lowers interest rates, the value of the dollar will rise by more in the market for foreign exchange, all else equal will fall, all else equal is not impacted by fed policy will rise, all else equal

The difference between the lower class limits of adjacent classes provides the