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Questions and Answers
Which of the following describes frequency in statistics?
Which of the following describes frequency in statistics?
- The range of values in a dataset
- The number of times a particular value occurs (correct)
- The average of a dataset
- The middle number in a sorted list
What is the mean of a set of numbers?
What is the mean of a set of numbers?
- The middle value when arranged in ascending order
- The average value (correct)
- The value that appears most frequently
- The difference between the highest and lowest values
What are quartiles in a dataset?
What are quartiles in a dataset?
- The minimum value in a dataset
- Values that divide the dataset into four equal parts (correct)
- The maximum value in a dataset
- A type of average
What is correlation in statistics?
What is correlation in statistics?
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Study Notes
Statistical Concepts
- Mean: The average of a set of numbers. It is calculated by summing all the values and dividing by the total number of values.
- Frequency: The number of times a particular value occurs in a set of data.
- Quartiles: Values that divide a dataset into four equal parts. There are three quartiles: Q1 (the first quartile), Q2 (the second quartile, also known as the median), and Q3 (the third quartile).
- Correlation: A statistical measure that describes the strength and direction of the relationship between two variables. Correlation can be positive (as one variable increases, the other increases), negative (as one variable increases, the other decreases), or zero (no relationship).
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