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Alexus [3.1K]
3 years ago
15

Which of the choices is the standard deviation of the sample shown here?

Mathematics
2 answers:
Assoli18 [71]3 years ago
6 0
Mean = (19 + 20 + 21 + 22 + 23)/5 = 105/5 = 21
x    x - mean   (x - mean)^2
19     -2                4
20     -1                1
21      0                0
22      1                1
23      2                4
               Sum = 10

Standard deviation = sqrt(sum(x - mean)^2 /n) = sqrt(10/5) = sqrt(2)
kati45 [8]3 years ago
5 0

Answer:

C for apex

Step-by-step explanation:


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