When investigating the relationship between two quantitative variables, we sometimes transform one of the variables in...
When investigating the relationship between two quantitative variables, we sometimes transform one of the variables in order to:
a) change a linear relationship into a nonlinear one.
b) conserve space.
c) more accurately portray the variable.
d) make the data look more Normal.
Homework Answers
Sol:
we apply transformation like
sqrt(x)
log(x)
1/x
to convert variable to normal variable.
Transform and check whether the distribution is normal or not.
ANSWER:
d) make the data look more Normal.
Add Answer to:
When investigating the relationship between two quantitative
variables, we sometimes transform one of the variables in...
When there is a nonlinear relationship between two variables, the slope will A. be zero. B....
When there is a nonlinear relationship between two variables, the slope will A. be zero. B. be infinite. C. be constant as we move along the curve. D. change as we move along the curve.
2, It is known that the quantitative relationship between the dependent variable Y and the independent...
2, It is known that the quantitative relationship between the dependent variable Y and the independent variables X and 2 is: A. Make a Table and draw the graph of the relationship between Y and X when the numerical value of Z is: B. Make a Table and draw the graph of the relationship between Y and Z when the numerical value of X is: C. Make a Table of the value of the rate of change of Y with...
2, It is known that the quantitative relationship between the dependent variable Y and the independent...
2, It is known that the quantitative relationship between the dependent variable Y and the independent variables X and 2 is: A. Make a Table and draw the graph of the relationship between Y and X when the numerical value of Z is: B. Make a Table and draw the graph of the relationship between Y and Z when the numerical value of X is: C. Make a Table of the value of the rate of change of Y with...
Question 12 titled folde Determine the type of relationship between the two variables shown in the...
Question 12 titled folde Determine the type of relationship between the two variables shown in the figure below: we 320 Perfect negative linear relationship Nonlinear relationship Perfect positive linear relationship Negative linear relationship swe 245 Moving to another question wives response Question to
Which of the following statements is correct? a. The stronger the linear relationship between two variables,...
Which of the following statements is correct? a. The stronger the linear relationship between two variables, the closer the correlation coefficient will be to 1.0. b. Two variables that are uncorrelated with one another may still be related in a nonlinear manner. c. A scatter plot showing two variables with a positive linear relationship will have all points on a straight line. d. All of the above are correct.
The data shown in the following scatterplot show a very nice relationship between the two variables....
The data shown in the following scatterplot show a very nice relationship between the two variables. However, the correlation here is 0.03, very close to zero. Explain why we can have a nice relationship between two quantitative variables and yet have a correlation of O 8 10 14 O There are no outliers but there are influential observations that cause the value of r to be near 0. 0 There are strong outliers that cause the value of to be...
When we say that the relationship between two variables may be caused by a third variable,...
When we say that the relationship between two variables may be caused by a third variable, we are d specifying what the third variable is. employing faulty reasoning O specifying that there can be only three interpretations ar O often not specifying what that third variable is.
Which of the following best describes correlation? a.) Correlation measures the strength of the relationship between...
Which of the following best describes correlation? a.) Correlation measures the strength of the relationship between any two variables. b.) Correlation measures the strength of the linear association between two categorical variables. c.) Correlation measures how much a change in the explanatory variable causes a change in the response variable. d.) Correlation measures the strength of the linear relationship between two quantitative variables.
One of the assumptions we sometimes need to make when performing statistical inferences is that the...
One of the assumptions we sometimes need to make when performing statistical inferences is that the response variable in the population has a Normal distribution. Is it possible to check that this assumption is satisfied? No - we can't really check this assumption since all data will look perfectly bell-shaped and symmetric, even if the population was not Normal. Yes - we can be absolutely sure the population was Normal if a plot of the data has no major outliers....
Select all of the following statements that are true about linear regression analysis of quantitative variables....
Select all of the following statements that are true about linear regression analysis of quantitative variables. If the purpose of our regression model is prediction, it does not matter which variables we define as the explanatory and response variable. The observed values of Y will fall on the estimated regression line, while the predicted values of Y will vary around the regression line. The purpose of linear regression is to investigate if there exists a linear relationship between a response...
2, It is known that the quantitative relationship between the dependent variable Y and the independent variables X and 2 is: A. Make a Table and draw the graph of the relationship between Y and X when the numerical value of Z is: B. Make a Table and draw the graph of the relationship between Y and Z when the numerical value of X is: C. Make a Table of the value of the rate of change of Y with...
2, It is known that the quantitative relationship between the dependent variable Y and the independent variables X and 2 is: A. Make a Table and draw the graph of the relationship between Y and X when the numerical value of Z is: B. Make a Table and draw the graph of the relationship between Y and Z when the numerical value of X is: C. Make a Table of the value of the rate of change of Y with...
Question 12 titled folde Determine the type of relationship between the two variables shown in the figure below: we 320 Perfect negative linear relationship Nonlinear relationship Perfect positive linear relationship Negative linear relationship swe 245 Moving to another question wives response Question to
The data shown in the following scatterplot show a very nice relationship between the two variables. However, the correlation here is 0.03, very close to zero. Explain why we can have a nice relationship between two quantitative variables and yet have a correlation of O 8 10 14 O There are no outliers but there are influential observations that cause the value of r to be near 0. 0 There are strong outliers that cause the value of to be...
When we say that the relationship between two variables may be caused by a third variable, we are d specifying what the third variable is. employing faulty reasoning O specifying that there can be only three interpretations ar O often not specifying what that third variable is.
Select all of the following statements that are true about linear regression analysis of quantitative variables. If the purpose of our regression model is prediction, it does not matter which variables we define as the explanatory and response variable. The observed values of Y will fall on the estimated regression line, while the predicted values of Y will vary around the regression line. The purpose of linear regression is to investigate if there exists a linear relationship between a response...
Most questions answered within 3 hours.
-
Little’s Law: Val d’Costa is a world famous ski village in the
French Alps. Because of...
asked 25 minutes ago -
Find the absolute error D for the calculation if A + B/C=D A=
9.4 +/- 0.4...
asked 38 minutes ago -
New Air Heating and Cooling, manufactures furnaces and central
air units. The company pride itself on...
asked 52 minutes ago -
A coach uses a new technique to train gymnasts. Seven
gymnasts were randomly selected and their...
asked 2 hours ago -
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 4 hours ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 6 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 6 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 8 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 8 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 8 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 9 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 9 hours ago