Question

New York Yankee Roger Maris held the single season home run record from 1961 until 1998. Here are Maris' home run counts for his 10 years in the American League:

14 28 16 39 61 33 23 26 8 13

Maris' record 61 home runs in 1961 is an outlier in this data set.

Question 1. Find the mean, median, and the standard deviation.
Mean:
Median:
Stand deviation:

Question 2. Find the mean, median, and standard deviation for the 9 observations remaining when you leave out the outlier.
Mean:
Median:
Stand deviation:

Did omitting the outlier increase or decrease the mean and standard deviation? (your answer should be one of the words "increase" or "decrease", without the quotes).

Answer 1

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