Although studies continue to show smoking leads to significant health problems, 20% of adults in the United States smoke. Consider a group of 250 adults. If required, round your answers to four decimal places. Use Table 1 in Appendix B. If your answer is zero, enter "0". a. What is the expected number of adults who smoke? 50 b. What is the probability that fewer than 30 smoke? Used continuity correction factor. .00104 c. What is the probability that from 55 to 70 smoke? Used continuity correction factor. .2383 d. What is the probability that 70 or more smoke? Used continuity correction factor.
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.
I need help with the last one...
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
