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Previous Question: let s be the set of all real numbers except -1. define * on s by a*b=a+b+ab. a)show that * gives a binary operation on s. B)show that (s,*) is a group. c) find the solution of the equation 2*x*3=7 in s. Next Question: A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased towards heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it?

(#M40122336) EXAM Numerical Ability question Keep an EYE

what is x+y: Asked In exam (9 years ago); Unsolved; Is this Puzzle helpful? (0) (0) Submit Your Solution

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Previous Question: let s be the set of all real numbers except -1. define * on s by a*b=a+b+ab. a)show that * gives a binary operation on s. B)show that (s,*) is a group. c) find the solution of the equation 2*x*3=7 in s. Next Question: A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased towards heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it?

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Maths Quotes

2 is not equal to 3 – not even for very large values of 2.

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You may be an engineer if your idea of good interpersonal communication means getting the decimal point in the right place.

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