Congressional acts and the Constitution
Explanation:(a) Was this an observational study or an experiment? Explain your reasoning. Experiment, because certain variables were controlled (he sets the screen brightness to low and then starts a movie) to determine if iPhones last longer if the screen brightness is set to low, and it proves the cause and effect relationship.
(b) What is the explanatory variable and the response variable? Response Variable- To determine if iPhones last longer if the screen brightness is set to low Explanatory variable- he sets the screen brightness of 10 of the iPhones to high and starts a movie, then the other 10 to low and starts a movie.
(c) Was a random sample used to collect the data? Yes- “he selects a random sample of 20 brand new iPhones”
I believe the answer is: 15-19 years old
The high number is caused by incompetent skills and driving under influence which seems more prevalent on this age group.
If put into a comparison, drivers within the age of 15-19 years old is 3 times more likely to be involved in an accident compared to the drivers that are 20 years old or older.
Answer:
A formal region may be characterized by human-centered properties, such as a common language or a common political system, or by physical properties, such as a particular land form or vegetation.
Explanation:
