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Statistic HELPPPPPP
A linear model can be used to describe the relationship between fuel economy(mpg) and horsepower (hp) for certain automobile models. mpg=46.8680.0838 hp R^2=75.5% 1) Give the symbol and the value of the correlation coefficient.
asked by Melissa on March 11, 2013 
statistics
An expert witness in a case of alleged racial discrimination in a state university school of nursing introduced a regression of the determinants of Salary of each professor for each year during an 8year period (n = 423) with the
asked by ronald on March 19, 2012 
Math
x=square footage of a house y=asking price in thousands of the house. x goes from 1200 square feet to 1500 square feet. the regression equation is y^= .0686x+83.24 A. what are the explanatory and response variables? B. Interpret
asked by Trisha on December 17, 2015 
statistics (math)
The following equation can be used to predict the average height of boys anywhere between birth and 15 years old: y = 2.79x +25.64 where x is the age (in years) and y is the height (in inches). a. What does the slope represent in
asked by karen on August 9, 2012 
algebra
please help! The following equation can be used to predict the average height of boys anywhere between birth and 15 years old: y = 2.79x +25.64 where x is the age (in years) and y is the height (in inches). a. What does the slope
asked by karen on August 10, 2012 
algebra(help)
The amount of money, in dollars, raised each year by a student club can be estimated by the function f(x)=150x240,000 where x is the year with 2000
asked by debbie on January 30, 2013 
Algebra 1 Math
A software company started with 2 employees. In 6 months, the company had 14 employees. The number of employees increased at a steady rate. a. create 2 ordered pairs. b. find the slope. c. Interpret the meaning of the slope. d.
asked by Tony on December 14, 2012 
epidemiology
In a fictitious study, 100 out of 1000 people aged 60 years and over were positive in detecting breast cancer using Tumour Biopsy (gold standard). Using mammography, 90 of breast cancer patients and 135 healthy persons were also
asked by Ekrem on August 18, 2012 
Algebra 1 Math
At the ocean's surface the pressure is 1 atmosphere. At 66 feet below seal level, the pressure is 3 atmosphere. The Relationship between the pressure and the depth is linear. a. find the independent and dependent variable. b.
asked by Tony on December 14, 2012 
math need help
study time in X hours 8 5 7 12 10 test grade Y in percent 68 50 62 92 80 a)model the date in a linear function b)interpret the meaning of the slope
asked by aaron on December 16, 2012