3 years ago

Simplify: 7 + 10x - 7 + 7x

Mathematics

1 answer:

goldenfox [79]3 years ago

3 0

Answer:

17x

Step-by-step explanation:

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dezoksy [38]

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The 95% confidence interval for the true mean speed of thunderstorms is [10.712, 13.688].

Step-by-step explanation:

Given information:

Sample size = 10

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At confidence interval 95% then z-score is 1.96.

The 95% confidence interval for the true mean speed of thunderstorms is

$CI=\overline{x}\pm z*\frac{s}{\sqrt{n}}$

Where, $\overline{x}$ is sample mean, z* is z score at 95% confidence interval, s is standard deviation of sample and n is sample size.

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