An instructor is wondering if students' time on an exam, their sex, and their age can be used to predict their final score.The following data is gathered.Score Minutes Sex Age96570 3492478396 867796 11781858896708177747787628786681069572951 40a. 0.670b. 0.298c. -0.128d. 0.6520 271 300 320 381 361 280 230 550 481 490 401 38What is the correlation coefficient considering all three independent variables?Select one:

Given,the dependent variable score, and the independent variables - minutes, sex, and age.To…

Answered: What is the 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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Similar questions

Which of the following correlation coefficient would reflect a conclusion made by a researcher that two variables are not related? r = –.30 r = +.02 r = +.36 r = –.98
Which of the following is the strongest correlation? -0.90 +0.50 +0.95 -0.99
Compute the Correlation Coefficient for the data displayed in the table below: x 24 31 38 27 33 y 63 72 79 65 73 Round your final decimal answer to three decimal places (round to the nearest thousandth) Correlation Coefficient = [cc] = _______________
Which r is the strongest correlation? O -0.8 O-0.18 O-0.09 O 0.711 O 0.4
A random sample of college students was surveyed about how they spend their time each week. The scatterplot below displays the relationship between the number of hours each student typically works per week at a part- or full-time job and the number of hours of television each student typically watches per week. The correlation between these variables is r = –0.63, and the equation we would use to predict hours spent watching TV based on hours spent working is as follows: Predicted hours spent watching TV = 17.21 – 0.23(hours spent working) Since we are using hours spent working to help us predict hours spent watching TV, we’d call hours spent working a(n) __________________ variable and hours spent watching TV a(n) __________________ variable. The correlation coefficient, along with what we see in the scatterplot, tells us that the relationship between the variables has a direction that is _________________ and a strength that is ______________________. According to the…
Recently, the stock market took big swings up and down. A survey of 969 adult investors asked how often they tracked their portfolio. The table shows the investor responses. What is the probability that an adult investor tracks his or her portfolio weekly? Express your answer as a simplified fraction and as a decimal rounded to three decimal places. How frequently? Response Daily O 231 269 274 Couple times a year 143 Don't track 52 Weekly Monthly 274 969 231 969 269 969 143 969 ;0.283 ;0.238 ;0.278 ;0.148
Which of the following correlation (r) show a negative association between 2 variables? 0.2 -1.4 0.4 -0.8
calculate the correlation coefficient to three decimal places, x is 4,5,6,7,8,9, y, 6.05,8.64,3.93,4.92,2.31,4
What does it mean if the linear correlation coefficient is A) 0? B) -1?
The correlation coefficient between variables X and Y is 0.62. What does this signify? Question 8Answer a. When Y increases 1, X increases by 0.62 b. When X increases by 1, Y increases by 0.62 c. The variance shared by X and Y is less 20% d. The variance shared by X and Y is 62%

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What is the correlation coefficient considering all three independent variables? Select one: a. 0.670 b. 0.298 c. -0.128 d. 0.652