Movies 2011 Rating Not Row G NC-17 Rated PG PG-13 R Summary Action/ Adventure 22.2 0.0 4.6 34.2 20.3 10.0 12.6 Comedy 11.1 0.0 16.3 19.2 21.7 23.3 19.5 Documentary 50.0 0.0 33.0 20.5 5.6 4.8 18.5 Drama 11.1 100.0 34.0 17.8 32.2 38.1 32.8 Horror 0.0 0.0 1.8 1.4 3.5 8.1 3.8 Other 5.6 0.0 6.4 5.5 2.8 2.9 4.5 Thriller/ Suspense 0.0 0.0 3.9 1.4 14.0 12.9 8.1 Column Summary* 100.0 100.0 100.0 100.0 100.0 100.0 100.00 *S1 = columnProportion · 100 Genre
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Movies by genre and rating Here’s a table that classifies
movies released in 2011 by genre and MPAA ratinga) The table gives column percents. How could you tell
that from the table itself?
b) What percentage of these movies were comedies?
c) What percentage of the PG-rated movies were
comedies?
d) Which of the following can you learn from this table?
Give the answer if you can find it from the table.
i) The percentage of PG-13 movies that were
comedies
ii) The percentage of dramas that were R-rated
iii) The percentage of horror movies that were G-rated
iv) The percentage of 2011 movies that were PG-rated
comedies
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