Question: I need help with steps to answer these questions 3) At the start of flu season, Dr. Anna Ahmeed examines 50 patients over two days.

I need help with steps to answer these questions

3) At the start of flu season, Dr. Anna Ahmeed examines 50 patients over two days. Of those 50 patients, 30 have a headache, 24 have a cold, and 12 have neither symptom. Some patients have both symptoms. a) Draw a Venn diagram [3 marks] b) Find the probability that a patient selected at random... Express the answer in fraction form lowest terms. [2 marks each] i) has just a headache ii) has a headache or a cold iii) does not have cold symptoms 4) In a year group of 63 students, 22 study biology, 26 study Chemistry and 25 study Physics. 18 study both Physics and Chemistry, four study Biology and Chemistry and three study both Physics and Biology. One studies all three subjects. How many students study: [1 mark each] a) Biology only b) Physics or Chemistry ) None of Biology, Physics or Chemistry d) Physics but not Chemistry? e) Illustrate the situation with a Venn diagram [3 marks]

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