Different groups of 50 graduates of engineer in school were asked the starting annual salary for their first engineer in job after graduation and the sampling variability was low if the average salary of one other groups was $78,000 which is least likely to be average salary of another groups

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

a

step-by-step explanation: