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Let the statement:

An instructor gives an exam with 15 questions, 7 questions require proof and 8 do not.  Students are allowed to choose any 10 to answer.  (1) How many different choices of ten questions are there? [a1] (2) How many groups of 10 questions contain 3 that require proof and 7 that do not? [a2] (3) How many groups of 10 questions contain at most 3 that require proof? [a3] (Please fill each blank with an integer and without comma or period.) (4) When randomly selecting 10 questions from the given 15 questions, what is the probability of randomly selecting 3 requiring proof and 7 not requiring proof? [a4] (Please fill the blank with a fraction in the form of M/N such as 2/3, where M and N are integers. DO NOT fill the blank with a decimal number or a percentage such as 0.67 or 67%. )

Which is an example of local health policy?

(1 bonus point if you have answered 5 questions correctly from questions 1 – 6; otherwise, 5 points for the correct answer.) (1) The formula  is used to compute the number of [a1] (2) The formula 

In this question, we will prove directly the statement :      

What is C. What is the function of D.   

Identify This lobe of the brain. What is it NOT associated with? 

Identify the main structure in the image below. What is its function ?

What is typically filling up this area in blue? What does that fluid  do? 

List the meninges ( 3 layers that protect CNS)  from superficial to deep: