Suppose we are interested in the proportion of statistics students at this university who are Commerce students.  We do a survey of 10 randomly selected students and ask them to indicate if they are Commerce students or not by ticking a box marked 'Commerce' or a box marked 'not Commerce' on the survey form.  When we get the responses, we find that 3 students have ticked the box marked 'Commerce' (7 have ticked the box marked 'not Commerce'). (3) Using the second sample, what is the sample proportion of statistics students who are Commerce students (type the proportion, correct to 2 decimal places, into the box)

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