3 years ago

What is the probability of landing on an even number?

Mathematics

1 answer:

Soloha48 [4]3 years ago

7 0

Answer:

1/2

Step-by-step explanation:

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Step-by-step explanation:

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A toy manufacturer wants to know how many new toys children buy each year. A sample of 601 children was taken to study their pur

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Answer:

The confidence interval is 6.6<μ<6.8.

Step-by-step explanation:

We have:

Number of observations = 601

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Standard deviation σ = 1.5

The z-score for a 95% confidence interval is 1.96.

The limits of the confidence interval can be calculated as

$X \pm z*\frac{\sigma}{\sqrt{n}}\\\\LL=X-z*\frac{\sigma}{\sqrt{n}}=6.7-1.96*\frac{1.5}{\sqrt{601} } =6.7-0.1199=6.6\\\\UL=X+z*\frac{\sigma}{\sqrt{n}}=6.7+1.96*\frac{1.5}{\sqrt{601} } =6.7+0.1199=6.8$

The confidence interval is 6.6<μ<6.8.

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3 years ago

Please help with 7 and 8

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Answer:

Step-by-step explanation:

Ok then "cracks knuckles" heres an image of the division! hope it helps.

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2 years ago

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Answer:

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Step-by-step explanation:

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