chaseking120418
09.11.2019 •
Mathematics
20 points plus brainliest if youre
compute the standard deviation for the set of data.
13.3, 14.3, 15.3, 16.3, 17.3
a.
√2
b.
2
c.
√10
d.
4
Solved
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Ответ:
13.3 + 14.3 + 15.3 + 16.3 + 17.3 = 76.5
76.5 / 5 = 15.3
Okay, so our average is 15.3.
Now, we have to subtract the mean from each number and then square the result.
(13.3 - 15.3)^2 = 4
(14.3 - 15.3)^2 = 1
(15.3 - 15.3)^2 = 0
(16.3 - 15.3)^2 = 1
(17.3 - 15.3)^2 = 4
Now we have to find the mean of those numbers!
4 + 1 + 0 + 1 + 4 = 10
10 / 2 = 2
Finally, we take the square root of that number and we have our standard deviation. =)
Ответ: