The following table shows the amount of money deposited in bank accounts for a sample of clients of a bank : amount of money in (OMR Number of clients 1000) 5 to less than 10 10 10 to less than 15 20 15 to less than 20 55 20 to less than 25 25 25 to less than 30 15 If the mean amount of money is 18.1 (Thousands OMR). The variance of the amounts of money is: Select one: 5.37 28.8 24.87 2.77

Q: т 1 Let A = (6 "). m Find A4 1

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A: Explanation of the solution is given below...

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Q: 2

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Q: Let Mbe as in Equation (3.14) and let X = [1, 0, ½]¹. Show that the entries of Y=MX sum to 1.

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A: -83

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