You have taught your patient about the use of the incentive…

You have taught your patient about the use of the incentive spirometer by reviewing the handout and doing a demonstration for her. When you evaluate using teach back, she tells you the following: “I need to use the incentive spirometer to help me breath better after my surgery. It will help me prevent pneumonia and doesn’t have any negative effects”.  She also correctly demonstrates the use of it. Does this patient have adequate, basic knowledge about this device?

An instructor gives an exam with 15 questions, 7 questions r…

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%. )