Mathematics
Grade10
Easy

Question

What does a correlation coefficient of r = -0.8 reveal about the data it describes?

  1. There is no correlation between the two variables
  2. There is a strong negative correlation between the two variables
  3. There is a strong positive correlation between the two variables
  4. There is a weak positive correlation between the two variables

The correct answer is: There is a strong negative correlation between the two variables


    a correlation coefficient of r = -0.8 reveals that There is a strong negative correlation between the two variables.

    Related Questions to study

    Grade10
    Mathematics

    What does a correlation coefficient of r = 0.3 reveal about the data it describes?

    What does a correlation coefficient of r = 0.3 reveal about the data it describes?

    MathematicsGrade10
    Grade10
    Mathematics

    What does it mean when the correlation coefficient is close (but not equal) to zero?

    What does it mean when the correlation coefficient is close (but not equal) to zero?

    MathematicsGrade10
    Grade10
    Mathematics

    What does it mean when the correlation coefficient is exactly equal to zero?

    What does it mean when the correlation coefficient is exactly equal to zero?

    MathematicsGrade10
    parallel
    Grade10
    Mathematics

    What does it mean when the correlation coefficient is close to -1 ?

    What does it mean when the correlation coefficient is close to -1 ?

    MathematicsGrade10
    Grade10
    Mathematics

    What does it mean when the correlation coefficient is close to 1 ?

    What does it mean when the correlation coefficient is close to 1 ?

    MathematicsGrade10
    Grade10
    Mathematics

    What is a bivariate data set?

    What is a bivariate data set?

    MathematicsGrade10
    parallel
    Grade10
    Mathematics

    Your linear regression function read as follows:
    r2 = 0.9909817911, r = 0.9954806834, a = 13.55882353, b = 17.58823529
    Which is the correlation coefficient of the line?

    Your linear regression function read as follows:
    r2 = 0.9909817911, r = 0.9954806834, a = 13.55882353, b = 17.58823529
    Which is the correlation coefficient of the line?

    MathematicsGrade10
    Grade10
    Mathematics

    Your linear regression function read as follows:
    r2 = 0.9909817911, r = 0.9954806834, a = 13.55882353, b = 17.58823529
    Which is the y-intercept of the line?

    Your linear regression function read as follows:
    r2 = 0.9909817911, r = 0.9954806834, a = 13.55882353, b = 17.58823529
    Which is the y-intercept of the line?

    MathematicsGrade10
    Grade10
    Mathematics

    Your linear regression function read as follows:
    r2 = 0.9944, r = 0.9972, a = 0.776823, b = 4.69062
    Which is the slope of the line?

    Your linear regression function read as follows:
    r2 = 0.9944, r = 0.9972, a = 0.776823, b = 4.69062
    Which is the slope of the line?

    MathematicsGrade10
    parallel
    Grade10
    Mathematics

    What function determines the equation of a line of best fit?

    What function determines the equation of a line of best fit?

    MathematicsGrade10
    Grade10
    Mathematics

    How can you evaluate the goodness of fit for a line of best fit for a paired data set?

    How can you evaluate the goodness of fit for a line of best fit for a paired data set?

    MathematicsGrade10
    Grade10
    Mathematics

    Jhon draws a trend line for the scatter plot in item 3 and writes the equation y = 6.5x + 12 to represent the line. Use her equation to predict how much she will spend if she buys 7 books

    Jhon draws a trend line for the scatter plot in item 3 and writes the equation y = 6.5x + 12 to represent the line. Use her equation to predict how much she will spend if she buys 7 books

    MathematicsGrade10
    parallel
    Grade10
    Mathematics

    Let f left parenthesis x right parenthesis equals 2 x minus 3. Suppose you subtract 5 from the input of the f to create the new function g, then multiply the input of the function g by 3 to create a function h. Write the equation that represents h?

    Let f left parenthesis x right parenthesis equals 2 x minus 3. Suppose you subtract 5 from the input of the f to create the new function g, then multiply the input of the function g by 3 to create a function h. Write the equation that represents h?

    MathematicsGrade10
    Grade10
    Mathematics

    If g left parenthesis x right parenthesis is the transformation of  f left parenthesis x right parenthesis equals x after a vertical compression by 3 over 4 , a shift right by 2, and a shift down by 4. What a function for g left parenthesis x right parenthesis.

    >>>Vertical shift of f(x) by 3/4 becomes 3/4(x)
    >>>Shifting right the function becomes 3/4(x-2)
    >>>Shifting right the function gives 3/4(x-2)-4.

    If g left parenthesis x right parenthesis is the transformation of  f left parenthesis x right parenthesis equals x after a vertical compression by 3 over 4 , a shift right by 2, and a shift down by 4. What a function for g left parenthesis x right parenthesis.

    MathematicsGrade10

    >>>Vertical shift of f(x) by 3/4 becomes 3/4(x)
    >>>Shifting right the function becomes 3/4(x-2)
    >>>Shifting right the function gives 3/4(x-2)-4.

    Grade10
    Mathematics

    Which of the following describes the difference between the graph of f and the graph of the input of f multiplied by 5?

    From the question it is clear that g left parenthesis x right parenthesis equals f left parenthesis 5 x right parenthesis.
    So, the slope changes by a factor of 5; the y - intercept does not change.

    Which of the following describes the difference between the graph of f and the graph of the input of f multiplied by 5?

    MathematicsGrade10

    From the question it is clear that g left parenthesis x right parenthesis equals f left parenthesis 5 x right parenthesis.
    So, the slope changes by a factor of 5; the y - intercept does not change.

    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.