Tell us the principle behind blockchain technology and how many types of it are available?

1

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What do you understand by turn block in blockchain?

1

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How blockchain ledger is differentiated from the normal ledger?

1

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How blockchain is used for bitcoin?

1

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What is a ledger and what kind of ledger is blockchain?

1

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What do you understand by double spending?

1

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What are feature vectors?

117

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Among python and r, which one is generally preferred for text analytics?

127

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What is the difference between a cluster and systematic sampling?

115

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Describe some assumptions considered important for linear regression?

80

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What is selection bias?

93

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Differentiate between type I and type ii error?

102

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Give an example of a data set that has a non-gaussian distribution?

100

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What is the importance of data cleaning in analysis?

91

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Describe the various steps involved while carrying out an analytical project?

111

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