Suppose it was observed that there is a correlation of r = -0.81 between a driver's age and the cost of the car insurance. This correlationwould mean that, in general, older people pay more for car insurance.OTrueFalseReset SelectionPreviousNextSaveO 0000(7,821MARetv A A4F10FIIF930 F3F8888F5F4F2%&%23456783RYKD

Since we know that negative correlation is defined as relationship between two variables in which if…

Answered: Suppose it was observed that there is a…

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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time in studying, the higher is their academic performance. O b. There isa strong negative correlation between the number of hours spent by the learners in studying and their academic performance. As a learner spends more time in studying, the lower is their academic performance. O c. There is a perfect correlation between the number of hours spent by the learners in studying and their academic performance. As a learner spends more time in studying, the higher is their academic performance. O d. There is no correlation between the number of hours spent by the learners in studying and their academic performance. From the study "Increasing Mathematics Achievement through Contextualized and Localized Materials in Distance Learning", which of the following statement/s are true about its dependent and independent variables? I. Mathematics achievement is the dependent variable
Suppose that, at the end of last semester, Marie gave her introductory statistics class a final exam. After grading these exams, she created a histogram illustrating the distribution of exam scores for the 70 students in the class. Each of the bars in this histogram includes only the left endpoint of the interval, except for the bar representing scores between 90 and 100 points, which also includes the right endpoint. What percentage of students scored between 60 and 80 points on the exam? Round your answer to the nearest tenth of a percent. Number of students who scored at least 80 points = students Percentage of students who scored between 60 and 80 points = %
A student noticed that when she gets less than 8 hours of sleep at night, she scores lower on her test grades. Can one conclude that this positive correlation shows a causal relationship? OYes, because it is well known that less sleep lowers test scores OYes, because it is not a negative correlation O No, because all students get less than 8 hours of sleep at night No, because it is possible that the student gets lower test grades because of another factor, such as not studying
2. A researcher measures the relationship between temperature and freeway traffic, with a correlation of -0.61. We would say this relationship is: Negative and Moderate Negative and Strong Positive and Moderate Positive and Weak O o o O
Explain Graphically by drawing hypothetical disgrams when the coefficient of correlation between two variables is (a) perfect positive, (b) perfect Negative, (c) zero?
Pearson's r is the technical term for the correlation coefficient most often used in psychological research. O True O False
Each given statement contains a blunder. In cach case, choose the statement that correctly explains the blunder. "There is a high correlation betwoen the "We found a high correlation (= 109) "The correlation between height and sex of American workers and their between students' ratings of faculty teaching and ratings made by other faculty members." weight of the subjects was 0.63 income." centimeters."
Suppose that we doubled everyone's original salary what will happen to the mean and sd

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Suppose it was observed that there is a correlation of r= -0.81 between a driver's age and the cost of the car insurance. This correlation would mean that, in general, older people pay more for car insurance. O True O False Reset Selection