Study Time(Hours)Exam Score(Points)010230450670890100b. Which is the dependent variable and which is the independent variable?Dependent variable: Exam scoreIndependent variable: Study timec. Summarize the data in equation form (assuming a decrease from 4 hours of study time to 2 hours)Instructions: Enter your answers as whole numbers.)(Exam Score=

b. An independent variable is the variable that does not depend on any other factor in the study. A…

Answered: Study Time (Hours) Exam Score (Points)…

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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The table shows a proportional relationship between the number of pounds of bananas purchased and the total cost of bananas. Number of pounds Total cost (dollars) 333 1.471.471, point, 47 555 2.452.452, point, 45 999 4.414.414, point, 41 ? ? A row of values is missing in the table. Which numbers of pounds of bananas and total costs of the bananas could be used as the missing values in the table? Choose 3 answers: Choose 3 answers: (Choice A) A Pounds of bananas: 222Total cost: \$0.98$0.98dollar sign, 0, point, 98 (Choice B) B Pounds of bananas: 777Total cost: \$4.45$4.45dollar sign, 4, point, 45 (Choice C) C Pounds of bananas: 666Total cost: \$2.94$2.94dollar sign, 2, point, 94 (Choice D) D Pounds of bananas: 111Total cost: \$0.54$0.54dollar sign, 0, point, 54 (Choice E) E Pounds of bananas: 888Total cost: \$3.92$3.92
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Identify the explanatory variable and the response variable. Explain your answer A college counselor wants to determine if the number of hours spent studying for a test can be used to predict a student's test results.
Using excel what is y, x1 and x2
solve b
Determine if the relation between independent variable and dependent variable given below has a positive, negative or no correlation: The amount of tea a person drinks and the intelligence level of a person. The starting salary earned and the education level. The height of a person and the weight of a person. The speed of the car and time taken for a journey. Smoking and lung disease.
Forest Fires and Acres Burned An environmentalist wants to determine the relationships between the numbers (in thousands) of forest fires over the year and the number (in hundred thousands) of acres burned. The data for 6 recent years are shown. Number of fires x 58 47 84 62 57 45 Number of acres burned y 19 26 51 15 30 15 Send data to Excel Part 1 of 5 Your Answer is correct (a) Draw the scatter plot for the variables. Fires and Acres Burned Acres burned 100,000s y 5 10 15 20 25 30 35 40 45 50 55 60 65 70 x 10 20 30 40 50 60 70 80 90 0 Fires 1000s Part: 1 / 5 1 of 5 Parts Complete Part 2 of 5 (b) Compute the value of the correlation coefficient. Round your answer to at least three decimal places. r=?
Shelia's doctor is concerned that she may suffer from gestational diabetes (high blood glucose levels during pregnancy). There is variation both in the actual glucose level and in the blood test that measures the level. A patient is classified as having gestational diabetes if the glucose level is above 140 milligrams per deciliter (mg/dl) one hour after a sugary drink. Shelia's measured glucose level one hour after the sugary drink varies according to the Normal distribution with µ = 124 mg/dl and σ = 13 mg/dl. If a single glucose measurement is made, what is the probability that Shelia is diagnosed as having gestational diabetes?
Please show work in excel Mrs. Rio is an English professor at Pasadena City College who wants to see if there is a relationship between the students' grades and the hours they spend reading daily. Number of Students Grade Hours spend Reading (Daily) 1 79 2 2 32 0 3 89 3 4 100 5 5 84 4 6 7 90 66 5 2 7 79 4 8 56 5 9 77 5 10 88 3 Is there a direct or indirect relationship between Grades and number of hours reading? Is it weak or strong? Find and interpret the correlation coefficient What is the linear regression model? Predict the grade for a student who read 3.5 hours At 6% level of significant, can we predict that there is a significant relationship between grades and number of hours reading? What percent of the variation in grades is accounted for by hours spent reading?
The scatter plot shows the relationship between the number of minutes studying for a test (x) and the number of mistakes made (y). The graph shows the scatterplot of the data and a fitted line. 19+ 18 17 16 15 14 13 12 10 4 -10 10 20 30 40 50 60 70 80 90 100 lio a2 Select True or False for each statement based on the scatter plot. True/False There is a negative association between the amount of time studying for a test and the number of mistakes made. True False Students who studied for a longer period of time tended to make more mistakes. True False There is a linear association between time True False studying and number of mistakes.
Describe the correlation -Buttons Positive Negative What is the equation for the line of best fit? y = -2x 9 Broom
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