Identify two characteristics of a valid scientific public opinion poll

Ron is conducting an experiment that lasts several hours. During part of the experiment, a noisy power saw operates outside the room. Ron is concerned that responses may be influenced by the power saw instead of his independent variable.

An angry customer can make you angry, too. however, it is crucial that

A scientist has invented a pill that can replace sleep. It is organic, cheap, and the only side effect is the elimination of dreaming. People taking it would recover approximately 25 years' worth of time that would otherwise be spent sleeping.

The costs of lead contamination have been estimated to be $1 billion for medical care of those sickened by lead, plumbing repairs, and reduced earnings of those affected by lead. This $1 billion can best be classified as: a.

Explain three basic principles of erikson's theory of development.

In three to four well-developed paragraphs, you will compare and contrast your two favorite stories from the lesson. Remember to be specific about things the stories and people had in common, as well as specific things that were different.

WHY does the article include information about Roosevelt's Four Freedoms Speech? Group of answer choices to emphasize the fears Americans felt about sending weapons to European countries during World War II to suggest that America contributed to

Do you think Madison's vision to control the mischiefs of faction works today? Why or why not?

Who was the 18 president of the united states and what year were they president

Rudy, who has just retired from his longtime job as a corporate executive, is enjoying the freedom that his post-working years afford him, and he is spending a lot of time doing the traveling that he never had the time to do before.