Approximately 65% of all marketing personnel are extroverts, whereas about 55% of all computer programmers are introverts. (round your answers to three decimal places.)

To convert percentages to decimal points, divide the percentage to 100. That is, 65÷100 and 55÷100. The answer would be 0.65 and 0.55. If the question asks for three decimal places, add 0 to the last digit of your decimal to make it three because it will be counted. So 0.65 becomes 0.650 and 0.55 becomes 0.550. 

B. 16is the absolute value