Imagine that we can predict one person's monthly salary (Y) from the number of years (X) that he has worked before. The regression equation is salary = 4000+50x. If a person has worked 5 years before, what's his predicted monthly

Q: Analysis of the data from 25 mothers indicates that an​ infant's birth weight​ (g), y​, can be…

A: From the provided information, The regression equation is as follow: y = 31x + 1501 Here x is the…

Q: In a study, the simple linear regression equation was found as y = 3.02 - 10.30 * x. Accordingly, if…

A: Given that x=7.74 The regression line is y=3.02 - 10.30x We plug x=7.74 to find y. y=3.02 -…

Q: Researchers used the simple linear regression model to study the relationship between social media…

A: first we have to find the equation of the regression line y^=a+bX

Q: A sports statistician was interested in the relationship between game attendance (in thousands) and…

A: We have given that, The regression line between the number of attendants, in thousands (x) and the…

Q: A sports statistician was interested in the relationship between game attendance (in thousands) and…

A: The y-intercept defines the predicted value of the independent variable when the value of the…

Q: do you need to add the days to the regression equation

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Q: What is added to the equation of the Simple Linear Regression to fit it for Multipl

A: Simple linear regression: If the data set is bivariate, then linear regression best suits the data.…

Q: Suppose the equation of the regression line for the number of emails a person recieves at a…

A: The regression equation is given as y = 10 +4x , where the independent variable x is the number of…

Q: The return rates of crane (Tagak) in Bulacan was studied using regression analysis and this…

A: Given: Percent of birds which return to the colony in a given year = x Percent of new adults which…

Q: Write the regression equation (use a and b provided in the Coefficients Table) Use this equation…

A:

Q: If the equation of the regression line that relates income in dollars of student's parents, x, with…

A: Given datay=8000+0.02x

Q: uppose the equation of the regression line for the number of emails a person receives at a…

A: Given regression equation is  y = 15 + 6 ⋅ x If a person has 15 accounts  find the number of emails…

Q: Substitute into the regression model (equation)  to predict monthly sales if $6250 is spent on…

A:

Q: Suppose the equation for a regression line is y =4x + 6. If x = 5, what is the predicted…

A: Given regression equation , y = 4x + 6  Where , slope = 4 y-intercept = 6  y is the dependent…

Q: The regression line that relates hours an adult spent at the local mall, x , to amount spent at the…

A: Let, x: The number of hours an adult spent at the local mall. y: The amount spent at the mall.…

Q: A sports statistician was interested in the relationship between game attendance (in thousands) and…

A:

Q: Business Science textbook stated that the longer the trading hours, the higher the turnovers. Based…

A: The regression line is y= 900+1500 x and trading hours = 16 hours per day.

Q: In the linear regression equation,Y= 3(X) + 1, When X increases by 4 Points, why will increase…

A: # In the linear regression equation,Y= 3(X) + 1, When X increases by 4 Points,  then y will increase…

Q: Find the intercept of the regression line.

A: here from given Information  Sxx = 6000 Syy = 153028  Sxy = -30060

Q: If you were a student, inscribe the things you’ve learned about the different concepts of Linear…

A: Here I have to express, what is linear regression ? How to apply with real life situation ?

Q: From this regression equation, we know that r, or the correlation between days of rain and hours of…

A: It is given that The regression equation is Predicted hours of sunshine = 2847 – 6.88(days of rain)

Q: In the equation of a linear regression, Y = b¡X + bo , if b1 = -4.7 which means %3D %3D

A: Since , the regression equation is , Y=b1X+b0 Given that b1=-4.7 We want to find the correct…

Q: If the regression equation is equal to Y=23.6−54.2X, then 23.6 is the _____ while -54.2 is the ____…

A: The general form of the regression equation is, y=a+bx Where a be the intercept and b be the slope.…

Q: How do you fit a linear regression model to data in R?

A: Note: Hey there! Thank you for the question. As this is a generalized question, we have explained…

Q: If the regression equation is Y = 2 –0.4X , What is the value of Ÿ when X = -3.

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Q: The regression model tells us if it does not rain for the given day there is no amount removed in…

A: The regression model for this above data, Y=153.1755-6.32399*X if it doesn't rain a given day, X=0…

Q: A small newspaper company is downsizing and has lost employees at a steady rate. Twelve months ago…

A: Multiple questions-"As per our guidelines we are suppose to answer only one question.Kindly re-post…

Q: If the equation of the regression line for hours xx  spent cycling in the summer and hours yy  spent…

A: The regression equation is given by y = -0.7x + 42 Where x = hours spent cycling  y = hours spent…

Q: A surgery intern has conducted a study of the sleeping habits of her colleagues and has developed a…

A: Introduction:For each value of x (number of hours working on one shift), the value of y (number of…

Q: The researchers decide to use simple linear regression to obtain a regression equation that would…

A: The regression equation is Y = 2.185 + 0.523X, where the independent variable X defines the score of…

Q: You determined there was a positive correlation between the number of study hours a week a student…

A: The regression equation of y on x is given by y = 2.072x + 49 Where, y = test score, and  x = number…

Q: A sports statistician was interested in the relationship between game attendance (in thousands) and…

A: Y intercept is the value of predicted variable when the explanatory variable x is zero.

Q: You have a regression equation based on data from years 1 thru 10 (y = 6 + 32x, where x equals…

A: Given Data: The regression equation: y=6+32x where, y is the dependent variable x is the independent…

Q: If the equation for the regression line is y^2=7x-7, then a value of x=2 will result in a predicted…

A: Here given regression equation is  Y2 = 7X - 7 For getting predicted Y for X =2, we just putting…

Q: A study of king penguins looked for a relationship between how deep the penguins dive in meters xx…

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Q: The table to the right shows estimates of mobile data traffic, in exabytes (1018 bytes) per month,…

A: Given Number of year 7

Q: Find the regression equation, letting the first variable be the predictor (x) variable. Using the…

A: The regression equation is, y-cap =53.8+0.2(x)

Q: Suppose that the regression equation that estimates the value of a car (in dollars) based on its age…

A: Given: Predicted Value = 21375 - 1215 Age

Q: What does rejection of H0: ρ = 0 imply for the regression equation yˆ=b0+b1xy^=b0+b1x?   Explain in…

A: What does rejection of H0: ρ = 0 imply for the regression equation y^=b0+b1x?

Q: A study of king penguins looked for a relationship between how deep the penguins dive in meters x to…

A: The given regression line is, Here, Slope = 0.0235 Intercept = 2.69

Q: The number of hours 13 students spent studying for an exam and their scores on that test are…

A: Given : The number of hours 13 students spent studying for an exam and their scores on that test are…

Q: The accompanying table shows the number of bacteria present in a certain culture over a 4 hour…

A: From given data, X Y X*Y X*X 0 90 0 0 1 103 103 1 2 109 218 4 3 129 387 9 4 141 564 16…

Q: movie production company was interested in the relationship between the budget to make a movie and…

A:

Q: Use the regression equation, Ŷ = 3X + 4, to find the predicted Y value corresponding to X  = 2 The…

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Q: A sports-equipment researcher was interested in the relationship between the speed of a golf club…

A: The slope of regression line: The linear regression line has the equation of the form Y=a+bX. where:…

Q: If the regression equation is ŷ = 2-0.4X, what is the value of ŷ when X = -3 ?

A:

Q: A biologist wants to predict the height of male giraffes, y, in feet, given their age, x1, in years,…

A: The regression equation is, ŷ = 7.36 + 0.00895x1 + 0.000426x2 +0.913x3, where x1 defines the age, x2…

Q: If you have 2 datasets on which you have conducted a regression analysis, how would you determine…

A: If 2 data set is on the same variables then we can combine them. Benefit to combine them is…

Q: If the equation of the regression line that relates income in dollars of student’s parents, xx, with…

A: We have to find correct answer..

Q: The least squares regression equation is y=18.7841+0.5616x. If the systolic pressures of two…

A: Given, regression equation is y=18.7841+0.5616x If x=8  y=?

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.