Definitions
This term refers to the data that involves only one variable.
A. Univariate
B. Bivariate
C. Unimodal
D. Bimodal
A. Univariate
If x1=8, x2=16, x3=3, and x4=4, what is summation of x?
31
If the Pearson correlation coefficient (r) between two variables is close to -1, what does the scatter plot of the data points look like?
a) The data points form a tight linear cluster sloping upward.
b) The data points form a tight linear cluster sloping downward.
c) The data points are scattered randomly without any specific pattern.
d) The data points form a curve rather than a straight line
b) The data points form a tight linear cluster sloping downward.
What does the symbol "√" indicate in mathematics?
Square Root
If "cat" is to "kitten," what is to "dog"?
"Puppy"
This correlation exists when high values in one variable correspond to low values in the other variable or low values in one variable correspond to high values in the other variable.
A. Perfect Correlation
B. No Correlation
C. Positive Correlation
D. Negative Correlation
D. Negative Correlation
If x1=2, x2=4, y1=5, and y2=10, what is summation of y?
15
If the Pearson correlation coefficient (r) between two variables is close to +1, how would the scatter plot of the data points appear?
a) The data points form a tight linear cluster sloping upward.
b) The data points form a tight linear cluster sloping downward.
c) The data points are scattered randomly without any specific pattern.
d) The data points form a curve rather than a straight line
a) The data points form a tight linear cluster sloping upward.
In the formula for calculating the Pearson correlation coefficient (r), what does 'n' represent?
The number of data points or observations.
If "pen" is to "writer," what is to "brush"?
"Painter" (or "artist")
It is another method which helps in finding the relationship that exists between bivariate data. It shows how each point collected from a set of bivariate data are scattered on a cartesian plane.
A. Cartesian Plane
B. Scatter Plot
C. Vertical Line Test
D. Number Line
B. Scatter Plot
If x1=2, x2=4, y1=5, and y2=10, what is summation of x2?
20
If the Pearson correlation coefficient (r) is close to 0, what does it indicate about the relationship between the variables in the scatter plot?
There is no linear relationship between the variables.
In algebraic expressions, what does the symbol "^" represent?
Exponentiation
If "doctor" is to "hospital," what is to "teacher"?
"School"
The Pearson correlation coefficient ranges between -1 and +1. What does a correlation coefficient of -1 indicate?
Perfect Negative Correlation
If x1=2, x2=4, y1=5, and y2=10, what is summation of y2?
125
If the Pearson correlation coefficient (r) is exactly -1, how would the scatter plot of the data points appear?
The data points form a tight linear cluster sloping downward.
In the Pearson correlation coefficient formula, what does "Σ" represent?
The sum of values.
If "planet" is to "solar system," what is to "country"?
"Continent"
If the researcher had obtained a correlation coefficient of -0.9 , what would be the interpretation of the relationship between X and Y?
There is a strong negative linear relationship between X and Y.
If x1=2, x2=4, y1=5, and y2=10, what is summation of xy?
50
If the Pearson correlation coefficient (r) is close to 0, but there is a clear curved pattern in the scatter plot, what can you conclude?
There is a non-linear relationship between the variables
What is the range of values that the Pearson correlation coefficient (r) can take?
-1 to +1
If "atom" is to "molecule," what is to "cell"?
"Tissue"