Statistics is a branch of mathematics that involves collecting, analyzing, and interpreting data. It helps us understand and make sense of large amounts of data by using various techniques and methods.
A multiple choice question is a type of question where the respondent is given a list of options and is asked to choose the correct answer from those options. It is commonly used in exams, surveys, and assessments.
The correlation coefficient is a measure of the strength and direction of the relationship between two variables. It is calculated by dividing the covariance of the two variables by the product of their standard deviations.
A correlation coefficient value of 0 indicates that there is no linear relationship between the two variables. This means that changes in one variable do not affect or predict changes in the other variable.
Correlation coefficients range from -1 to 1, with 0 indicating no correlation, -1 indicating a perfect negative correlation, and 1 indicating a perfect positive correlation. The closer the value is to 1 or -1, the stronger the relationship between the variables. A value close to 0 indicates a weak or no relationship.