Answer: 3) Confounding variable
Explanation:Confounding variable is the variable that indicates about the external influential factors that produces the manipulated consequences of independent and dependent variable.This variable can lead to producing useless outcomes in an experiment.
According to the question, the changes occurring in interest of student in algebra can be due to the outside factors which are not generating the actual results and thus, experiment is getting ruined.
Other options are incorrect because application variable remain same for the experiment,system variable are the variables of certain system and reliability variables describe about the variable on which dependent or stable.Thus, the correct option is option(3)
Answer: Measurable.
Explanation: It is possible to measure a market segment and the difference in preference for a product by knowing the size, purchasing power and profile of a market segment.
Answer:
what would happen is stem and radioactive materials may be released from the venue.
Explanation: this would be released as a result of the pressure, heat, and rapid release of energy from the nuclear reactors. Which this would be harmful to people.
With the removal of Indians from American territory, the white nation became stronger. Jackson was the first democratically elected president. He fought for the "common man" and against banks.
<h3><u>Was the Jacksonian era a democratic era?</u></h3>
Even though Andrew Jackson was only president from 1829 to 1837, his impact on American politics was felt both before and after his presidency. The period from approximately 1824 to 1840 has been referred to as the "Age of Jacksonian Democracy" and the "Era of the Common Man."
However, by modern standards, the United States was far from democratic. Women could not vote and were legally under the control of their husbands; free blacks were considered second-class citizens at best, if not completely disenfranchised; and slavery was expanding in the southern states.
Furthermore, the period saw the relocation of Native Americans west of the Mississippi River, as well as the concentration of wealth in fewer and fewer hands. However, changes occurred that broadened political participation and reform movements emerged to address inequalities in American society.
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