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spayn [35]
4 years ago
14

A scientist is interested in determining if body temperature of women is lower than men. He decides to randomly selects 50 women

and 50 men from the phone book of all residents of Gainesville. What part of the field of statistics has he completed?
Social Studies
1 answer:
nevsk [136]4 years ago
5 0

Answer:

Design

Explanation:

The design of an experiment is the design of the way or method in which the experiment will be carried out. The design is made in order to prove the hypothesis which is set in the beginning.

Here, the method by which selection of the candidates is done is chosen from the phone of of all residents of Gainesville.

Hence, the question here is referring to design.

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Your friend is having a hard time with the terminology in this unit. He is confused between the terms pure substances, mixtures,
Keith_Richards [23]

Answer and Explanation:

  • Pure substances are basically chemical substances with distinct composition and properties that are constant. They may consist of one atom, molecule or compound that cannot be easily separated by physical separation technique. <em>Examples of pure substances are iron, water, gold etc. </em>
  • Mixtures are made up of two or more substances that are not chemically combined together, in which each substance that make up the mixture still retains their chemical identity, and can separated by physical method. <em>Examples of mixtures are brass made up of different metals, salt water, milk etc. </em>
  • Elements are pure chemical substances that are made up of a single type of atom which cannot be easily broken down. <em>For example, hydrogen, oxygen, iron. </em>
  • Compounds are made up of two more different elements that are chemically bonded together by chemical bonds. <em>Examples include NaCl or salt, which is made up of Na and Cl; Water which is made up of Hydrogen and Oxygen </em>
  • Homogenous mixture contains substances of uniform composition, <em>e.g, air which consists of mixture of gases; a mixture of salt and water; milk etc. </em> Heterogenous mixture, on the other hand contains substances whose distribution are not uniform, i.e. non-uniform. <em>Examples are a mixture of sand and water; water and oil etc. </em>
  • Physical change is a type of change that involves the change of form of a matter without the chemical properties being altered. This is a reversible change. On the other hand, a chemical change is an irreversible change in which the chemical properties of a matter are changed.
  • <em>Examples of physical change are freezing of water, melting an ice cube, melting of wax etc.  </em>
  • <em>Examples of chemical change are burning of wood, rusting of iron etc</em>.
8 0
4 years ago
According to_________ theory, global poverty can at least partially be attributed to the fact that the low-income countries have
malfutka [58]

Answer:

dependency              

Explanation:

Dependency theory: In sociology, the term "dependency theory" is described as a "sociological theory" in which the economic events that had been happened in history generally have encouraged various developing countries to be dependent on the support related to the more "advanced nations". However, the dependency theory dealt with the "unequal power relations" that has been developed as a consequence of "colonialism".

In the question above, the given statement signifies the dependency theory.

8 0
3 years ago
Why were the U.S. Colored Troops so vital to the Union?
wlad13 [49]

Answer:

Black troops made an important percentage of the total Union Army force, around 10%  of the Northern armies, according to historians. Some 180,000-200,000 African American men - some former slaves, some free before the war - fought in the Union´s ranks between 1863 and 1865.  Only after the Emancipation Proclamation of 1863, military service was opened for black men, both as soldiers and officers. There were many racist prejudices against them, but black troops fought with heroism and courage in some battles of the Civil War.

Explanation:

3 0
3 years ago
*******WILL MARK BRAINLIEST*****WORTH 50 POINTS******<br> Please answer in COMPLETE sentences
Nonamiya [84]

The president signs a bill and allows it to become a law.

its the answer

8 0
3 years ago
Kara gets an F on her history exam. Then she goes home and gets into an argument with her roommate, Lee. Lee assumes Kara is yel
hichkok12 [17]

Answer:

an assumption

Explanation:

He is thinking that is what it might be but that is not it

7 0
2 years ago
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