1. Let X be the number of typographical errors found per page in certain books. The table below shows a probability distribution of X. 2 0.10 3 0.09 4 0.01 0.15 P(X) Find the mean of X. 0.65 A. 0.56 В. 0.66 С. О.37 D. 0.72

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A: The answer is given below

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A: Correct ans is =option B

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A: Please find attachment for the details solution 

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A: Please find attachment for the details solution

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Q: 1.) sec (-2.0807 + 4.5465i

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A: True  is correct ans   

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A: It is known that:  LHt-cft=e-csLft+cLcosat=ss2+a2

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