14Find Karl Pearson's coefficient of correlation between the age and theplaying habit of the people from the following information :Age group (years)No. of peopleNo. of players15and less than 2020 and less than 2525 and less than 3030 and less than 3535 and less than 4040 and less than 45150162170180200270340360400180120300Interpret the calculated value of r.12

In bivariate distribution, if the change in one variable affects a change in the the other variable…

Answered: Find Karl Pearson's coefficient of…

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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1)After training, six workers underwent a test and later measured the productivity of each of them. From the re- results presented in the table beside, calculate the correlation coefficient between the test score and the productivity.
8. Find Q.D. and its coefficient from the following data. Class 130- 134 160- 155- 159 12 135- 140- 140- 145- 150- Interval 139 164 144 21 149 154 Frequency 3. 12 28 19 5
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6. Which of these relationships would be better described with a Spearman's rank coefficient than with a Pearson's coefficient? a. The association between income and educational attainment (measured in years of school) b. The association between hours of sleep and score on an exam C. The association between years aged and price of wine d. The association between ice cream sales and crime rates e. The association between number on NY Times Best Seller List and copies of book sold
For each of the following, indicate whether a correlation is most likely POSITIVE, NEGATIVE or NC (no correlation possible). The number of calories consumed and a person's weight loss The age of a child and the kind of pets owned Number of hours spent partying and GPA The age of a car and its mileage Weekly ice cream sales and weekly average temperature
9. Tell whether the correlation coefficient would be closest to -1, 0 or 1. a. b. с. 150 150 150 100 100 100 50 50 50 0 2 4 6 x 0 2 4 6x 0 2 4 6 x
If when measuring two quantitative variables on an individual, we find that increases in the first variable x correspond to decreases in the second variable y, we say that A. there is a positive association between the two variables. b. there is a negative association between the two variables. c. there is no correlation between the two variables. d. there is a cause-and-effect relationship between the two variables.
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The following data refers to the amount of caffeine (in mg) consumed by ten university students and their time to complete a practice test (in minutes) for a Economics Exam. Use attached Graph and Table to answer question below pls Describe the overall pattern of the relationship between caffeine amount and time to finish the practice exam in graph diagram provided. Does it follow a straight-line pattern? Is there a positive or negative association, or neither? How strong is the relationship?
10. The sign of the Pearson’s correlation coefficient (r) tells us what information? a. only the strength of the correlation (small, medium, or large) b. only the direction of the correlation (negative or positive) c. both the strength and direction of the correlation d. the strength, direction, and form of the correlation
a. Correlation coefficient between hours spend on using mobile per day and hours spend on reading books per day. b. Draw the scatter diagram of the spending hours on using mobile and reading books per day. c. Give the statistical meaning of the relationship between the spending hours on using mobile and reading books per day.
Which of the following represents the strongest correlation? O.10 00 O.55 O-.24

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Find Karl Pearson's coefficient of correlation between the c ing habit of the people from the following information : Age group (years) No. of people No. of pl 15and less than 20 20 and less than 25 25 and less than 30 150 162 200 270 340 170 30 and legg th