**The Frequency Table Shows The Results Of A Survey** – Mathematical Statistics The grouped frequency table below shows the results of a statistical test performed by 70 students. Test Result x% Frequency Osx < 20 8. 20 sx < 40 17 40 sx < 60 25 60 sx < 80 13 80 sx < 100 1) What is the mean? 2) Explain how to get the mean if you have a table of frequencies and then find the median. 3) What is a modal group?

The grouped frequency table below shows the results of a statistical test performed by 70 students. Test Result x% Frequency Osx < 20 8. 20 sx < 40 17 40 sx < 60 25 60 sx < 80 13 80 sx < 100 1) What is the mean? 2) Explain how to get the mean if you have a table of frequencies and then find the median. 3) What is a modal group?

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## The Frequency Table Shows The Results Of A Survey

Correlation Correlation determines the relationship between two independent variables. It describes the degree to which variables move relative to each other. When two sets of data are related to each other, there is a relationship between them.

## Solution: Averages From Frequency Tables Worksheet

Linear Correlation Correlation is used to determine the relationship between numerical and categorical variables. In other words, it is a measure of how things are related to each other. Correlation analysis is the study of the relationship between variables.

Regression Analysis Regression analysis is a statistical technique in which it estimates the relationship between a dependent variable and one or more independent variables. Simply put, the dependent variable is called the outcome variable and the independent variable is called the p…

Transcribed text image: The clustered frequency table below shows the results of a statistical test performed by 70 students. Test Result x% Frequency Osx< 20 8. 20 <x< 40 17 40 sx< 60 25 60 <x< 80 13 80 sx< 100 1) What is the mean? 2) Explain how to get the mean if you have a table of frequencies and then find the median. What is a modal group? 3) 4) How are you going to estimate the standard deviation? 5) The same class took the same test. Their mean value was 45% and Sx was 19.5. Compare the two classes.

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#### Solved] Answer #3, 4, 7

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