A professor wanted to compare two types of teaching styles. One type is by tutorials and the other is giving a lecture. It is a common belief that tutorials result in better retention. This belief is tested by having 10 students learn a topic by each method and then having them take a test on their knowledge of the material that was covered. Them take a test on their knowledge of the material that was covered. A coin flip was used to determine which type of teaching method a student would be given firstteaching method a student would be given first. Results indicated that there was no difference in the two types of presentationpresentation.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.

A76-year old female with degenerative joint disease made an appointment with an orthopedic surgeon. the patient stated she has had severe pain in her right knee for six months. she has tried physical therapy and steroid injections but has not had any relief. the surgeon has agreed to schedule a right total knee arthroplasty (knee replacement).

Select all of the tools you could use to track your expenses. -budget software -spreadsheet -mint© -automatic bill payment -mvelopes®