What are the range, median, mean, and standard deviation of: {212, 142, 169, 234, 292, 261, 147, 164, 272, -20, -26, -90, 1100}?
Paulkenyo
Open question
2022-08-19
Answer & Explanation
Donovan Burns
Beginner2022-08-20Added 4 answers
Strictly speaking, since all the data points in the sample space are integers, we should express the mean also as an integer to the correct number of significant figures, ie
The 2 standard deviations, depending on whether you want the sample or population standard deviation is, also rounded to the nearest integer value,
and
The range is simplify
To find the median, we need to arrange the sample space of points in ascending numerical order to find the middle value.
X={-90,-26,-20,142,147,164,169,212,234,261,261,272,292,1100}
The middle data value is hence the median, and is 169
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