A tentative explanation/statement of a declaration of the expected outcome of a research study based on observations is called:

gold discovery in california, and pioneer settlers were sometimes pulled west because they wanted to make a better living. others received letters from friends or family members who had moved west. these letters often told about a good life on the frontier. the biggest factor that pulled pioneers west was the opportunity to buy land.

welcome mark brainliest i am trying to get to the next level.

answer; /// the correct answer is (a) burned the city;

answer; control group;