7.5% Should be the correct answer!
Answer:
Bugatti's new $3.9 million hypercar broke a world record for going over 300 miles per hour — now it's for sale. Bugatti is building 30 example of a souped-up version of its Chiron model — the Chiron Super Sport 300+, a version of which recently became the world's fastest production car, cracking the 300mph barrier.
Explanation:
I would say this comes from the sociological perspective of the ordinary patients who require medicine and general health care and who may not be able to afford it since for example medicines are so expensive that without medicare or a good private health plan they may be out of reach of people's income.
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”
