11 (a) Some people were asked which continent they visited on their last holiday. The results are shown in the table below. (i) Find the probability that one of these people, chosen at random, visited North America. (ii) Find the probability that one of these people, chosen at random, did not go to Asia. Give your answer as a fraction in its lowest terms. (iii) Two of these people are chosen at random. The tree diagram opposite shows the possible outcomes and some of their probabilities. (a) Complete the tree diagram. (b) What is the probability that the two people went to the same continent? (b) The table shows the distribution of the total cost per person for holidays in 2014 for another group of people. (i) Draw a histogram to represent this data. (ii) Estimate the number of people who spent less than $700 on holidays in 2014. (iii) Of the people who spent less than $250 on holidays in 2014, 2/7 did not go on holiday. How many people did not go on holiday in 2014?