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erma4kov [3.2K]
2 years ago
15

A spinner has

Mathematics
2 answers:
Gre4nikov [31]2 years ago
7 0
Gray: 3/8 sections
Blue: 5/8 sections

3/8*5/8=0.234375(100)=23.4375% of landing on Gray then Blue
svet-max [94.6K]2 years ago
6 0
P(GthenB)=(3/8)(5/8)

P(GthenB)=15/64
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irina [24]

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Since we have given that

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\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)

(b) Construct a 95% lower confidence bound on the mean life.

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So, confidence interval would be

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3 years ago
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