One variableA. 3 moments, calculation and definitionB. Normal distribution density functionC. Student-t testD. R command to get the first three momentsTwo variablesA. Correlation, definitionB. Rank correlation, definitionC. Rolling or moving correlation, calculation D. R command to run correlationMulti-factor modelA. How to build a model B. A model has 4 parts C. OLS math formulaD. BLUEE. Importance of a factor (t-value) F. Model fit (R-square)G. R command to run OLSTime seriesA. Time series model, AR(1), AR(2) B. Unit root testQuantile regressionA. Median is more robust than average B. Median regression

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Answered: One variable A. 3 moments, calculation…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

One variable

A. 3 moments, calculation and definition
B. Normal distribution density function
C. Student-t test
D. R command to get the first three moments
Two variables

A. Correlation, definition
B. Rank correlation, definition
C. Rolling or moving correlation, calculation D. R command to run correlation
Multi-factor model

A. How to build a model B. A model has 4 parts C. OLS math formula
D. BLUE

E. Importance of a factor (t-value) F. Model fit (R-square)
G. R command to run OLS
Time series

A. Time series model, AR(1), AR(2) B. Unit root test
Quantile regression

A. Median is more robust than average B. Median regression

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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