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 want to go, but my mom won't let me.
or
I want to go but, my mom won't let me.
Answer: B. Our greatest primary task is to put people to work.
Explanation:
When President Franklin D. Roosevelt took over as President, the country was in the grip of the Great Depression. An unprecedented number of Americans were unemployed and could not afford their living expenses.
Up till then it was a general belief in the United States that the government should not be involved in the economy but Roosevelt came with a new idea. He believed that the government should involve itself as this was the only way to restore balance and so he initiated a slew of agencies and projects aimed at employing Americans in their numbers.
Answer:
The correct option is;
b. NATURE / Biology (genetics, brain chemistry & hormones effect on behavior
Explanation:
According to the principles of evolutionary psychology, the human and animal behavior are subconsciously determined by the inter-connected network neural network such that humans and animals are unmindful of the process or order in which the conclusions and behavioral decisions are arrived at. As such human behavior within a given environment is directed by the natural brain in which the interconnection of the senses or the neural circuit is shaped by natural selection.
