BIE215 ANSWER ALL QUESTIONS Question 1 Construct truth table for the compound statement ( - (9 Ar ) ) - (~rvq ). EE E - B I X2 1 - Times(2 marks) Question 2 Each user on a computer system has a password, which is seven to nine characters long, where each character is an uppercase letter or a digit. Each password must contain at least two digits. How many possible passwords are there? Show your calculation. (2 marks) BE.E . B I U S x2 $ x 8 4 1 - TimesHence, write your final answer. (4 marks) Question 4 Limkokwing University has received 150 new students to join their IELTS program. State the least number of students who were born in the same month. Explain your answer. (2 marks) 1 - Times . B. BE EE. B I U S X2 x2 $ 1x 8