Melita oden compared the 100 most successful men (the a group) with the 100 least successful men (the c group) from lewis terman's original sample of 1,500 children with genius-level intelligence. given that the iq scores of the a and c groups were essentially the same, what accounted for the difference in their level of accomplishment?

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.