Effect of removing an outlier. j Exercise 4.6 looked at months between bacterial meningitis and the onset

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Effect of removing an outlier.

j Exercise 4.6 looked at months between bacterial meningitis and the onset of seizures in 13 cases.

Data were {0.10, 0.25, 0.50, 4, 12, 12, 24, 24, 31, 36, 42, 55, 96}.

(a) Calculate the mean and standard deviation for these data.

(b) Calculate the median and IQR.

(c) Remove the outlier (96) and recalculate the mean and standard deviation. Also, recalculate the median and IQR. What effect did removing the outlier have on the mean and standard deviation?

What effect did it have on the median and IQR?

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