Theoretical distributions - Study guides, Class notes & Summaries

CAIA Exam 2024 Questions & Answers 100% CAGR - ANSWER-compound annual growth rate annualized return - ANSWER-(1+HPR)^number of holding periods in one year - 1 multiple hedge fund aggregation - ANSWER-equal weighted approach, asset weighted, and arbitrary weight approach Performance index - ANSWER-R index = Sum of wi * Ri in the case of multiple fund aggregations, severals prefer reporting median return - ANSWER-you know what the median is---the fact that outliers are automatically ex...

AP HUMAN GEOGRAPHY LATEST UPDATE GRADED A+ fieldwork the study of geography by visiting places and observing the people that live there and how they react with the changes there *human geography the study of humans and their cultures, activities, and landscapes; how people make places, how we organize space and society, how we interact with each other in places and across space, and how we make sense of others and ourselves in our localities, regions, and the world; the spatial analysis of hum...

What is the probability that a respondent is male and prefers arts? - ANSWERS2/15 which of the following is the weighted average of the squared deviations from the expected value? - ANSWERSvariance which of the following is a continuous random variable? - ANSWERSnumber of students in class which of the following is true about probability density functions? - ANSWERSit calculates the probability of a random variable lying within a certain interval which of the following is true of nor...

NCE StatisticsRange - correct answer Highest score minus lowest score (sometimes plus 1) T Score - correct answer have a mean of 50 and a standard deviation of 10. Z Score - correct answer The number of standard distributions the score is above or below a mean Stanine - correct answer a method of scaling test scores on a nine-point standard scale with a mean of five and a standard deviation of two. T Test - correct answer Test for comparing two means (parametric, used for normal...

Sociology Test Questions with Complete Solutions Conflict Perspective: - ANSWER -Unlike the structural functional theory, which views society as a peaceful unit, conflict theory interprets society as a struggle for power between groups engaging in conflict for limited resources. Karl Marx is the founder of conflict theory. -Conflict perspective is one of the major theoretical approaches to sociological thought. It originated with Karl Marx and his critique of capitalism and has s...

Sociology Test Questions with Complete Solutions Conflict Perspective: - ANSWER -Unlike the structural functional theory, which views society as a peaceful unit, conflict theory interprets society as a struggle for power between groups engaging in conflict for limited resources. Karl Marx is the founder of conflict theory. -Conflict perspective is one of the major theoretical approaches to sociological thought. It originated with Karl Marx and his critique of capitalism and has since developed...

Experimental Variance Variance attributable to the independent variable under study (ex- making one group have a program and the other does not) - Extraneous Variance (Systematic) variance attributable to factors not not related to study variable. Will cause a change in mean making a program look better or worse (think: internal validity) Error Variance Variance attributable to random fluctuations. No change in mean is produced Formative Evaluation Evaluating program du...

Single-subject research most common is pre- and post-test or single-case study (AB) in which there is a comparison of behavior before treatment and after treatment (baseline vs. intervention) Internal validity refers to the integrity of the experiment itself. It is the ability to draw a causal link between the treatment and the dependent variable External validity refers to the ability to generalize your study findings to the general population (single-subject research tends to h...

Factor Based Models classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model Why limit number of factors in a model? 2 reasons overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects simplicity: simple models are usually better Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen Classical var...

Factor Based Models classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model Why limit number of factors in a model? 2 reasons overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects simplicity: simple models are usually better Classical variable selection approaches 1. Forward selection 2. Backwards elimination 3. Stepwise regression greedy algorithms Backward elimination...