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Phoenix [80]
2 years ago
7

I would really appreciate it if someone could help me with these last few problems

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
7 0

Answer:

Ouestion 5 answers

1)8.5

2)150

3)8

4)15

Step-by-step explanation:

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A store manager is looking at past jewelry sales to determine what sizes of rings to keep in stock. The list shows the ring size
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<span>mean: ( 9 + 7 + 6.5 + 7.5 + 7 + 8 + 5 + 6 + 7.5 + 8 ) : 10 = 7.15Variance:(Sigma)² = ( 1.85² + 0.15² + 0.65² + 0.35² + 0.15² + 0.85² + 2.15² + 1.15² + 0.35² + 0.85² ) : 10 ≈ 1.15Answer: C ) 1.15</span>
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