8. Which of the following are approximate roots of the equation -óx? + 20 = 43x? a x--7.61, 0.44 c x÷-0.44, 7.61 b x -97.04, 3.58 d x--3.58, 97.04 9. What is the value of the discriminant for the function Ax) = 8x + 13x + 7? с 0 a -68 b -55 d 393

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.