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Select the outlier in the data set.\newline10,14,28,45,49,59,91,99,58110, 14, 28, 45, 49, 59, 91, 99, 581\newlineIf the outlier were removed from the data set, would the mean increase or decrease?\newlineChoices:\newline(A)increase\newline(B)decrease

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Q. Select the outlier in the data set.\newline10,14,28,45,49,59,91,99,58110, 14, 28, 45, 49, 59, 91, 99, 581\newlineIf the outlier were removed from the data set, would the mean increase or decrease?\newlineChoices:\newline(A)increase\newline(B)decrease
  1. Identify Outlier: Identify the outlier in the given data set.\newlineThe data set is: 10,14,28,45,49,59,91,99,58110, 14, 28, 45, 49, 59, 91, 99, 581.\newlineAn outlier is a data point that is significantly different from the rest of the data. We can often spot an outlier by looking for a number that is much larger or smaller than the rest of the numbers in the set.\newlineIn this case, 581581 is much larger than all other numbers and stands out as the outlier.
  2. Calculate Mean with Outlier: Calculate the mean of the data set with the outlier included.\newlineTo find the mean, add all the numbers together and divide by the number of data points.\newlineMean = (10+14+28+45+49+59+91+99+581)/9(10 + 14 + 28 + 45 + 49 + 59 + 91 + 99 + 581) / 9\newlineMean = (976)/9(976) / 9\newlineMean 108.44\approx 108.44
  3. Calculate Mean without Outlier: Calculate the mean of the data set without the outlier.\newlineRemove the outlier 581581 and calculate the new mean.\newlineMean without outlier = (10+14+28+45+49+59+91+99)/8(10 + 14 + 28 + 45 + 49 + 59 + 91 + 99) / 8\newlineMean without outlier = (395)/8(395) / 8\newlineMean without outlier 49.375\approx 49.375
  4. Compare Means: Compare the means to determine if the mean would increase or decrease upon the removal of the outlier. The original mean with the outlier was approximately 108.44108.44, and the mean without the outlier is approximately 49.37549.375. Since the mean without the outlier is less than the mean with the outlier, the mean would decrease if the outlier were removed.

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