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Q: Three guests were staying at a hotel. Combined, their room was $42 dollars. Later, the manger realiz...

A: Initially…Initially, the 3 guests together paid $42. So, the total amount of money available is $42....

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A: It is required to find the z-value such that, P (Z < z) = 0.60.

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A: First, we will find the sum of the given frequency and then will check at which position the score w...

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A: In this question we have given some probabilities at some values of x and by using that information...

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A: The mean(mX) of a random variable X is given as:

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