Mathematics

Grade10

Easy

Question

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

- There is no correlation between the two variables
- There is a strong negative correlation between the two variables
- There is a strong positive correlation between the two variables
- There is a weak correlation between the two variables

## The correct answer is: There is no correlation between the two variables

### when the correlation coefficient is exactly equal to zero There is no correlation between the two variables.

### Related Questions to study

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

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

Mathematics

### What is a bivariate data set?

### What is a bivariate data set?

MathematicsGrade10

Mathematics

### Your linear regression function read as follows:

r^{2} = 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:

r^{2} = 0.9909817911, r = 0.9954806834, a = 13.55882353, b = 17.58823529

Which is the correlation coefficient of the line?

MathematicsGrade10

Mathematics

### Your linear regression function read as follows:

r^{2} = 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:

r^{2} = 0.9909817911, r = 0.9954806834, a = 13.55882353, b = 17.58823529

Which is the y-intercept of the line?

MathematicsGrade10

Mathematics

### Your linear regression function read as follows:

r^{2} = 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:

r^{2} = 0.9944, r = 0.9972, a = 0.776823, b = 4.69062

Which is the slope of the line?

MathematicsGrade10

Mathematics

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

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

MathematicsGrade10

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

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

Mathematics

### Let . 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 . 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

Mathematics

### If is the transformation of after a vertical compression by , a shift right by 2, and a shift down by 4. What a function for .

>>>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 is the transformation of after a vertical compression by , a shift right by 2, and a shift down by 4. What a function for .

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.

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 .

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 .

So, the slope changes by a factor of 5; the y - intercept does not change.

Mathematics

### A student graph . On the same grid, he/she graphs the function g which is a transformation of f made by multiplying to the output of f. Write the equation of the transformed graph.

Given

So,

### A student graph . On the same grid, he/she graphs the function g which is a transformation of f made by multiplying to the output of f. Write the equation of the transformed graph.

MathematicsGrade10

Given

So,

Mathematics

### Which line fits the data graph below?

### Which line fits the data graph below?

MathematicsGrade10

Mathematics

### A student graph . On the same grid, he/she graphs the function g which is a transformation of f made by subtracting 4 from the input of f. Write the equation of the transformed graph.

Given

So,

### A student graph . On the same grid, he/she graphs the function g which is a transformation of f made by subtracting 4 from the input of f. Write the equation of the transformed graph.

MathematicsGrade10

Given

So,