(7 marks) A group a students were asked if they carry an ATM card The responses
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Question
(7 marks) A group a students were asked if they carry an ATM card The responses are listed in t table below. Class Freshman 44 Sophomore Total ATM card carrier Not an AT'M card carrier Total 70 80 150 35 fa student is selected randomly from this group of students, then (Continue the table before answer the following) 1- The probability that the student is a freshman who carries an ATM card 2- The probability that the student is a sophomore or doesn't carry an ATM card 3-The probability that he or she carries an ATM card Given that the student is a freshmanExplanation / Answer
ATM card carrier non ATM card carrier tot
from table we can conclude that freshman 44 26 70
semopsphere 45 35 80
1 ANS) probability that the student of a fresh men carries an ATM card is = 44 / 70 =0.628
2 and) probbaility that she is sempohsere or doesnt carry = 35 /80 -=0.4375
3ans) probability thta he or she carries an atm with a student ia s freshmaen = 44 / 44+45 = 44/89 =0.494
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