If U. S. Treasury bills are earning 4 percent and the stock investment you are considering has a potential return of 10 percent, you would be paid a percent return to take the additional risk of investing in the stock.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

Devonte is balancing his checking account. his account statement does not include a deposit of $107.00 that he made on november 1st. what is devonte’s actual account balance?