A variable is normally distributed with mean 16 and standard deviation 2. a. Determine the quartiles of the variable. b. Obtain and interpret the 80th percentile. c. Find the value that 65% of all possible values of the variable exceed.

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A: Introduction: The disparities between every two successive terms in an arithmetic progression (AP)…

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Q: 4.) 5.) 6.) 50 10 4 9.) 8.) 7.) 11 38 47 4. %3D

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A: 2. 2540-2440=140

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