FontParagraphiI asked a sample of SCOB instructors howmany football games they watched a particularweekend and recorded the following:A. 2B. 3.3C. 2.5D. 1.58E. 1.830, 3, 4, 1What is the variance?Drawing<: NotesEditing 11937BE

From the provided information, The data values are as follow: 0, 3, 4, 1 Sample size (n) = 4

Answered: I asked a sample of SCOB instructors…

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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3. Can SAT scores predict college performance? Let x be a variable that represents SAT score of a computer science major, and let y be a variable that represents a student’s GPA upon graduation. A random sample of n =15 computer science majors provided their SAT scores and GPAs: x 1232 1070 1086 1287 1130 1048 1121 1095 1135 1208 1333 1160 1186 1243 1261 y 3.52 2.91 2.4 3.47 3.47 2.37 2.4 2.24 3.02 3.32 3.59 2.54 3.19 3.71 3.58 The scatter diagram for the SAT score and GPA is given below: (a) Find the sample correlation coefficient r. Truncate to two decimal places. What does the value tell you about the data? (b) Find the equation of the least squares line . Truncate to four decimal places. What does the slope mean? (c) Find the value of the coefficient of determination . Truncate to two decimal places. What does this number mean? (d) What is the predicted GPA if a computer science major got a…
Given the following frequency table, the 10. sample Variance (S ) is 3 4 1. 12 13 15 10
The variance for the sample of student marks given in following table is: number marks of student 1-5 2. 6-10 3 11-15 6. 16-20 10 21-25 4. Total 25 Select one: a. 33.5 b. 19 O C. 24.12 d. 32.16
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3. Can SAT scores predict college performance? Let x be a variable that represents SAT score of a computer science major, and let y be a variable that represents a student’s GPA upon graduation. A random sample of n =15 computer science majors provided their SAT scores and GPAs: x 1232 1070 1086 1287 1130 1048 1121 1095 1135 1208 1333 1160 1186 1243 1261 y 3.52 2.91 2.4 3.47 3.47 2.37 2.4 2.24 3.02 3.32 3.59 2.54 3.19 3.71 3.58 The scatter diagram for the SAT score and GPA is given below: (a) Find the sample correlation coefficient r. Truncate to two decimal places. What does the value tell you about the data? (b) Find the equation of the least squares line . Truncate to four decimal places. What does the slope mean? (c) Find the value of the coefficient of determination . Truncate to two decimal places. What does this number mean? (d) What is the predicted GPA if a computer science major got a…
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Assume that we have a data set composed of three features. After doing PCA we find that the variances of the three principal components are 18, 5 and 1. What fraction of the variance of all the data can be expressed in terms of the first principal component? Select one: О а. 7/8 b. 2/3 O C. All of it. O d. 3/4
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I asked a sample of SCOB instructors how many football games they watched a particular weekend and recorded the following: 0, 3, 4, 1 What is the variance? A. 2 B. 3.3 C. 2.5 D. 1.58 E. 1.83