Numeric answers that are not integers should be reported to 2 decimal places.
What is the trace of matrix m (defined in the R script)?
What is the trace of a 10 by 10 identity matrix?
What is the product of the elements in column vector V (defined in the R script)?
What is the value of the element in matrix m in row 4 and column 6?
What is the average of the second column of matrix m?
What is the maximum value in the third row of matrix m?
What is the number of columns in matrix m plus the number of rows in matrix m?
A) Create variable called row5 equal to row 5 of matrix m.
B) What is the the result of multiplying row5 by v?
What is the scalar value resulting from multiplying the transpose of column “X_ .1″
in data frame f by column”X_ _2” in f?
The data frame f is defined in the provided R script.
Randomly generate 10000 values for variable y using the model:
y= 1+2x+ e
●X isa normally distributed random variable with mean 0 and variance 1
●e is a normally distributed random variable with mean 0 and variance 1
●X and e are independent random variables
What is the absolute value of the difference between your sample variance of y and the population variance of y, given the model for y and the distributions of X and e?