<span>The federal government pulled out troops from the South at the end of Reconstruction, leaving African Americans unprotected.</span>
Answer: "cognitive dissonance" .
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Over 9000 people have died because of religion.
Answer: a sequence pattern
Explanation:
Data mining is the process of discovering unknown patterns in large amount of data. Data mining helps in developing smarter marketing campaigns and to predict customer loyalty.
Data mining reveals clusters where three or more database elements occur.
There are two types data mining namely; supervised data mining and unsupervised data mining.
In supervised data mining; it begins with user telling the data mining software to test for specific pattern in a data set.
Unsupervised data mining software is good at recognizing sequence, affinity and predictive pattern.
Answer:B.token economies
Explanation:
Token economy refers to giving someone a reward with an aim of encouragement and enhancement of a desired behavior. This token economy comes in form of tokens , food, stickers and any other rewards that are meant to improve a positive behavior. Parents can use token economy and it is also used by teachers in schools to encourage good performance from teh students. The ideas of a token economy is to reinforce the positive behavior. Just as we see how Zack mom rewards him with stickers for cleaning his room and as a result he keeps cleaning his room consistently.