(a) 10 identical blocks are marked with '0' on two of them, '1' on three of them, '2' on four of them and '3' on one of them and put in a box. If $X$ denotes the number written on the block, then write the probability distribution of $X$ and calculate its mean. OR (b) In a village of 8000 people, 3000 go out of the village to work and 4000 are women. It is noted that $30%$ of women go out of the village to work. What is the probability that a randomly chosen individual is either a woman or a person working outside the village?