I doubt the exam will make us do a cumulative frequency diagram, however, they might give us one and tell us to look for the upper quartile, median, Lower quartile and interquartile range, they also might ask, for example, how many people spend over X time a week reading and you check.
Transformations does go in the Syllabus but in the paper 2 they didnt add it so my guess is that in the 04/11 math paper 4 exam they will make some questions about it. Its mainly rotation, reflection, shear, stretch, enlargment and translation.
Thats all i think