Select the outlier in the data set.33,43,57,67,69,74,80,191If the outlier were removed from the data set, would the mean increase or decrease?Choices:(A)increase(B)decrease
Q. Select the outlier in the data set.33,43,57,67,69,74,80,191If the outlier were removed from the data set, would the mean increase or decrease?Choices:(A)increase(B)decrease
Identify Outlier: Step 1: Identify the outlier in the data set.Data set: 33,43,57,67,69,74,80,191To find the outlier, look for a number that is significantly different from the rest.Outlier: 191, as it is much higher than the other numbers.
Calculate Mean: Step 2: Calculate the mean of the original data set.Mean = (33+43+57+67+69+74+80+191)/8Mean = 614/8Mean = 76.75
Remove Outlier: Step 3: Remove the outlier and calculate the new mean.New data set: 33,43,57,67,69,74,80New mean =(33+43+57+67+69+74+80)/7New mean =423/7New mean =60.43
Compare Means: Step 4: Compare the original mean and the new mean to determine if the mean increased or decreased.Original mean: 76.75New mean: 60.43Since the new mean is less than the original mean, the mean decreases when the outlier is removed.
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