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posledela
3 years ago
14

For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard

Mathematics
1 answer:
stich3 [128]3 years ago
5 0

Answer:

4.53

Step-by-step explanation:

Given the data :

4, 5, 10, 11, 15

The mean = 9

The standard deviation of a sample :

s = √[Σ(x - mean)²/(n-1)]

s = √[((4-9)² + (5-9)²+(10-9)² + (11-9)² + (15-9)²) / (5-1)]

s = √(25+16+1+4+36)/4

s = √20.5

s = 4.527

s = 4.53

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