Given the correlation coefficient rho is -0.46 for the linear associationbetween the number of facebook hours and midterm exam grade of astudent, the correct interpretation of -0.46 isThere is a very strong inverse linear association between number of facebookhours and midterm exam grade of a student.O There is a strong inverse linear association between number of facebook hoursand midterm exam grade of a student.There is a weak inverse linear association between number of facebook hoursand midterm exam grade of a student.O There is a moderate inverse linear association between number of facebookhours and midterm exam grade of a student. A positive correlation coefficient means that there is arelationshipbetween two variables.O ZeroDirectO InverseO Proportional

Correlation - Is a mathematical measurement of degree of association between two variables. Positive…

Answered: A positive correlation coefficient…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An independent variable that makes a unique contribution to the prediction of a dependent variable is a(n) ______ variable. a. manifest b. orthogonal c. unique d. latent
Which of the following refers to the variable that is being manipulated during an experiment? Constant Descriptive variable Dependent variable Independent variable
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience. What is the expected number of admissions for the fall semester? Compute the variance and the standard deviation of the number of admissions. Admissions 1000 1200 1500 Probability 0.6 0.3 0.1
stion 3 of 16 The weight gain of corals in aquariums where the water temperature is controlled at different levels. Identify the explanatory variable and response variable for this relationship, if possible. O Explanatory variable: aquariums; Response variable: weight gain of corals. O Explanatory variable: aquariums; Response variable: corals. O Explanatory variable: water temperature; Response variable: weight gain of coral. O Explanatory variable: weight gain of corals; Response variable: water temperature. O Explanatory variable: corals; Response variable: water temperature.
X - Variable4334334139131950Y - Variable615644648622628713694592 Which statement best describes the relationship between the variables?There is a constant correlation.There is no correlation.There is a uniform correlation.There is a negative correlation.There is a positive correlation.
Interpret the Correlation Coefficient 0.16 It is Weak Negative It is Strong Positive It is Strong Negative It is Weak Positive
If another variable systematically co-varies with the independent variable, then we likely have an extraneous variable b. a dependent variable an ex post facto design a confounding variable
The number of hours 13 students spent studying for a test and their scores on that test: Hours spent studying(x) Test score (y) 0 40 1 41 2 51 3 48 4 64 4 69 5 73 5 75 6 68 6 93 7 84 7 90 8 95 Using 5% level of significance, is there a significant relationship between hours spent studying and test score. What is the coefficient of determination? Leave answers in 4 decimal places.
A negative value for a correlation indicates____ increase in X tend to be accomplished by the increase in Y how much weaker relationship then if the correlation were positive a much stronger relationship than if the correlation were positive increase in X tend to be accomplished by decrease in Y
How does multiplying each score by a (positive) constant affect the value of the correlation? The correlation changes sign. The correlation does not change. The correlation decreases. The correlation increases.
Which of the following are attributes of correlation? Ocorrelation is bounded by +1 and -1 correlation is a measure of linear dependency a correlation of 0 does not mean that 2 variables are independent independent variables have 0 correlation
ck Identify the correct symbol for the observed value of the dependent variable. Answer ! 14 ©2022 Hawkes Learning Q A @ 2 W S # 3 E D ar $ 4 R LL % 5 ^ 6 obi obo ОУ Oy OBI O Bo G OE Ox Oy-ŷ MacBook Pro & 7 * H 8 اااا 9 O 0

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A positive correlation coefficient means that there is a relationship between two variables. O Zero Direct O Inverse O Proportional