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Question: The following is a preview of the DataFrame df . class name test 1 test 2 0 1 Nick 1 1 3 2 1

Question: The following is a preview of the DataFrame df

.

class name test

1

test

20 1

Nick

11 321 2

Sarah

12 452 1

Jasmine

92 623 2

Martin

56 34

Complete the code to return the output.

(

___)

test

1

test

2

class

1 51.5

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