(Ex) (E%)-nEx (Ex)²-nE For n data points, the coefficients of the best-fit line, y = mx + b, are m= - m>x,), where all sums run from k = 1 to k =n. Find the best-fit line for the following data set. Plot the points and the best-fit line. (4,0), (2,7), (3,8) The line of best fit is y =

Q: 1,2 and 3 please

A: 3)

Q: What is the slope for (1,6) and (1,8)

A: We have to find the slope of the two points given

Q: Find the slope of the linès containing the following sets of points: (-2, 4) (5, 6)

A: Given,           The point is -2,4 and 5,6.To find : Find the slope of the lines containing the…

Q: Find the ratio in which Y -axis divides the line segment joining the points (-5,-6) and (1,-4)

A:

Q: Graph the line through the point (−3,−1)with slope of −1/6.

A:

Q: Find Z if x = 12, x= 8 and S= 4.

A: The formula of Z-score is,

Q: Which value(s) of x satisfies the equation Vx? -4x –5 = 2x – 10 {3, 5, 7} {5} {5, 7} O {7}

A: Given an equation x2-4x-5=2x-10 To find the values of x that satisfy the equation

Q: Find the point 2/3 of the way from (−6, 6, 5) to (−8, −8, −5). P=(??,?)

A: Here we have to find the point 2/3 of the way from (-6,6,5) to (-8,-8,-5).

Q: AY 4 2. 4 4 -2 4 XA 2. 2.

A:

Q: Match these values of r with the accompanying scatterplots: 0.42, - 0.781, - 1, 1, and 0.995. Click…

A: Scatter diagram: It is used to examine the relationship between y variable and x variable.…

Q: Find the equation of the normal line 3X-24 2 -시 at the point (-1,

A:

Q: Create a direct variation using two ordered pairs from those shown. {(-5,-2), O,D} (2, 5) (5, 2)…

A:

Q: Find g(-3). Consider the following. y 4 2 4 -2 -4

A: Since there is a blank dot that means that we need to look for black dot hence the functional value…

Q: Q2/ Fit a straight line to the given to the data (2,2), (4,11), (6,28), (8,40) 1 Add file

A:

Q: What is the linear pattern of 4500 students in 2014 and 3700 students in 2019

A: The linear pattern is:   Since,             the no. of students are decreasing from the year 2014…

Q: Find the slope of the function y2+8x396x² @ a given point of (99,56) note Il youur answer is 125x,…

A:

Q: Are the points (−2, 1), (1, 7), and (4, 14) on the same line? Why

A: We are given three points to check if they are linear or not. Three or more points are said to be…

Q: For the (x, y) pairs of data points ((10, 90), (15, 170), (8, 80), (12, 100), and (14, 140), the…

A: Regression analysis is used to predict the value based on some other independent values. It helps in…

Q: Use the table to select all sets of two ordered pairs that result in slope of 1? 1. (-5, 3) 2. (-2,…

A:

Q: find y if the line through (4,8) and (5,y ) has a slope 6

A: We know, the slope of the line joining two points x1, y1 and x2, y2 is given by Slope = y2-y1x2-x1

Q: 3x² – 7x + 9 at a = –1

A: Find first derivative that is the slope of curve at given point.

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.