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tiny-mole [99]
3 years ago
9

Explain for the number 7931 what is the nearest thousand hundred and tens?

Mathematics
2 answers:
lys-0071 [83]3 years ago
5 0
Hi....the answer is..........
To the nearest thousand is 8,000... To the nearest hundred is 7,900... To the nearest ten is 7,930..... your welcome


Anna007 [38]3 years ago
4 0
To the nearest thousand, it is 8,000
To the nearest hundred, it is 7,900
To the nearest ten, it is 7,930
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The yearbook committee polled 80 randomly selected students from a class of 320 ninth graders to see if they would be willing to
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Using the z-distribution, as we are working with a proportion, it is found that the margin of error for the 90% confidence interval is of 0.0524 = 5.24%.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

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The margin of error is given by:

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Both before and after a recent earthquake, surveys were conducted asking voters which of the three candidates they planned on vo
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Answer:

0.05547

Step-by-step explanation:

Given :

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Before 1838 __ 418 ___1475 _3731

After _ 1420 __ 329 ___1140_2889

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The expected frequency = (Row total * column total) / N

N = grand total = 6620

Using calculator :

Expected values are :

1836.19 __ 421.006 __ 1473.8

1421.81 ___325.994__ 1141.2

χ² = Σ(Observed - Expected)² / Expected

χ² = (0.00177817 + 0.0214571 + 0.000974852 + 0.00229642 + 0.0277108 + 0.00125897)

χ² = 0.05547

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Your answer is going to be X=-6

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