The data below id from 128 recent sales in Mid City. For each sale, it shows the neighborhood (1, 2, or 3) of the house, # of offers made on the house, sq. footage, whether house is primarily made of brick, # of bathrooms, # of bedrooms, & selling price. Â Neghborhoods 1 & 2 are traditional, 3 is newer/more prestigious. Use regression to estimate & interpret the pricing structure of houses in Mid City.

Q3. Based on the regression of SqFt on Price, the total amount of variation in price that is explained by SqFt is about __________.

The data below id from 128 recent sales in Mid City. For each sale, it shows the neighborhood (1, 2, or 3) of the house, # of offers made on the house, sq. footage, whether house is primarily made of brick, # of bathrooms, # of bedrooms, & selling price. Â Neghborhoods 1 & 2 are traditional, 3 is newer/more prestigious. Use regression to estimate & interpret the pricing structure of houses in Mid City.

Q5. Run a multiple regression model that predicts price based on SqFt and number of Bedrooms. In this model both predictors are statistically insignificant. TRUE or FALSE

2. ? has the p.d.f. ?(?) = { 2??−2? ? ≥ 0 (1 − ?)? ? ? < 0 . Find the point estimate of ? based on the value of ? via the following 2 approaches: Method of moments. Method of maximal likelihood. And show that both are unbiased

?⃗ = (2?)?̂− (3?)?̂
?⃗⃗ = (1?)?̂− (2?)?̂

Find
a) ?⃗ − 2?⃗⃗
b) ?⃗ ∙ ?⃗⃗
c) ?⃗ × ?⃗⃗
d) Angle between ?⃗ and ?⃗⃗

How do you find the domain of:

f(g)= 5x^2+4

f(g)= 3x; -2<x<6

f(g)= (1) / 3x-6

f(g)= (x+2) / x^2-1

f(g)= x^4 / x^2+x-6

f(g)= sqrt (x+1)

f(g)= sqrt (x^2+9)

1. Suppose f(x,y)=(1/8)(6-x-y) for 0<x<2 and 2<y<4.
   1. If all else is the same, then why can’t x be defined on the range [0,3]?
   2. Find p(0.5 < X < 1, 2 < Y < 3)
   3. Find f_X(x) and f_Y(y)
   4. Are X and Y independent? Why or why not?
   5. Find p(0.5 < X < 1) and p(2 < Y < 3)
   6. Find p(Y<3|X=1)
   7. Find p(Y<3|0.5<X<1)

2.Define the following terms
1)correspondent relationship
2)International settlements
3)visible trade
   4)financial transaction
5)vostro account
6)International trade
7)trade terms
8)open account
9)advance payment
10)sales contract

use a matlab built-in function to numerically solve:

dy/dx= -x^2+((x^3*e^-y)/4) for 1<=x<=5 with y(1)=1

plot the solution