Find the standard deviation for the set of data. (17,26,28,9,30, 29,6,21,23}
1 answer:
Using it's concept, the standard deviation for the given data-set is of 8.22.
<h3>What are the mean and the standard deviation of a data-set?</h3>- The mean of a data-set is given by the <u>sum of all values in the data-set, divided by the number of values</u>.
- The standard deviation of a data-set is given by the square root of the <u>sum of the differences squared between each observation and the mean, divided by the number of values</u>.
The mean for this problem is:
M = (17 + 26 + 28 + 9 + 30 + 29 + 6 + 21 + 23)/9 = 21
Hence the standard deviation is:
More can be learned about the standard deviation of a data-set at brainly.com/question/12180602
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Answer:
One such example of the data is { 1, 1 ,2}
Step-by-step explanation:
1) Mean of a data =
2) Median = The middle value of the given data when data is arranged is ascending order.
3) Range of a data = Highest value - Lowest value
here, let the data be { 1, 1, 2)
So, 1) Mean =
2) Median = 1
3) Range = Highest value - Lowest value
= 2 -1 = 1
Here, in all the cases the answers is same = 1
Hence, one such example of the data is { 1, 1 ,2}