all required with numbering

Question Number 07: (a) If a dice is loaded in such a way that an odd number is twice as likely to occur as an even number. If A be the event of occurrence of number less than 4, find the probability of A? (b) A class of statistic consists of 24 Industrial, 17 Mechanical, 19 Electrical, and 25 Civil engineering students. If a student is selected at random, find the probability that the student is; (i) A Civil student engineering. (ii) A Mechanical or Electrical engineering students. (c ) The probability that a person will purchase a new automobile will choose the colours gray, white, purple and blue are 0.12, 0.16, 0.19 and 0.23 respectively. What is the probability that a new buyer