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jeka57 [31]
3 years ago
11

Question 10 unsaved to reach older adults in your community, you survey 500 randomly chosen people over age 65. the process of s

electing participants is called:
Social Studies
1 answer:
Triss [41]3 years ago
8 0
The correct answer is random selection.

Random selection refers to a process in which a sample or group of participants for a research study are randomly drawn from the entire population the researcher has access to. The main strength of using a random sample for a research study is that biases are avoided and the findings obtained are more representative of the population as a whole. 
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Answer:

A

Explanation:

this is what i read from a search “Nations have no permanent friends or allies, they only have permanent interests.” because a year they could be friends then the next they be enemies

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3 years ago
What type of contraction involves the development of tension but no change in length?.
valentinak56 [21]

An isometric contraction is the kind of contraction that leads to development of tension but no increase in length.

An isometric contraction occurs as the muscle produces tension without changing the angle of a skeletal joint. Isometric contraction is a static muscle action that helps to maintain the posture. For example, the antigravity muscles. It occurs in the biceps when the arms may be holding a weight. In such a posture, the biceps enlarge due to holding of weight and produces tension but do no increase in length. It stops the flexion of elbow. In such contraction, no work is done, and lesser amount of heat energy is released in comparison to isotonic contractions.

Learn more about Contractions at:

brainly.com/question/4393982

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