function from the spreadsheet, the average monthly returns was about 1.0075%, and it had a standard deviation of about 7.2147%.
The rates that we found from the St. Louis Federal Reserve web site were stated in APR, so we had to divide it by 4 to get the monthly returns. The 2nd column represents the monthly reuturns for the 3-month Treasury bill secondary market for the last 60 months.
Beta
Security C 20% 1.25
Security K 30% 0.95
Which security has more total risk?
Which security has more systematic risk?
Which security should have the higher expected return?
Minimum Variance (MV) Frontier: For a specific expected return E(Rp), i.e. a target return, a portfolio that gets you the lowest variance. It solves the following:
When there are tw
The Beta distribution is very useful for modeling the probabilistic behavior of certain random variables such as proportions, constrained to fall in the interval (0,1)
1.1 Study Designs
․Retrospective Studies
․Prospective Studies
※ Survival Analysis
; Deals with analysis of data that have "time to an event".
※ Survival time
; Time until an event occurs.
※ Event
; a. relapse of a disease
b. death
c. response to a treatment
; Economical,
To obtain answers quickly because the cas
3. ADHD의 신경심리 평가
1) Self or direct report test
- 아동이나 부모&교사의 보고를 통해서 전문가가 진단을 내림
ex) CBCL, Conners 평가척도
2) Task test
- 과제수행을 통해서 아동의 인지적&행동적 결함을 평가함
ex) CPT, stop-signal task
Continuous Performance Task
지속적인 주의집중능력을 평가
ADHD 아동은