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3 years ago

What is the answer to this ?

Mathematics

2 answers:

BARSIC [14]3 years ago

6 0

Answer:

b ithinkmfx!vv. vgvvgg. gvvhgvg yh

Dimas [21]3 years ago

6 0

The answer is D, the last one.

Explanation:

Something can only be described as a function if it does NOT have the same two inputs with different outputs.

For ex. (5,6) (0,8) (5,9) would NOT be a function because there’s two fives with two different y’s.

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4 years ago

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3 years ago

Read 2 more answers

In a survey conducted by the Gallup Organization, 1100 adult Americans were asked how many hours they worked in the previous we

const2013 [10]

Answer:

1) Increase the sample size

2) Decrease the confidence level

Step-by-step explanation:

The 95% confidence interval built for a sample size of 1100 adult Americans on how much they worked in previous week is:

42.7 to 44.5

We have to provide 2 recommendations on how to decrease the margin of Error. Margin of error is calculated as:

$M.E=z_{\frac{\alpha}{2} } \times \frac{\sigma}{\sqrt{n}}$

Here,

$z_{\frac{\alpha}{2} }$ is the critical z-value which depends on the confidence level. Higher the confidence level, higher will be the value of critical z and vice versa.

$\sigma$ is the population standard deviation, which will be a constant term and n is the sample size. Since n is in the denominator, increasing the value of n will decrease the value of Margin of Error.

Therefore, the 2 recommendations to decrease the Margin of error for the given case are:

Increase the sample size and make it more than 1100
Decrease the confidence level and make it lesser than 95%.

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4 years ago