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3 years ago

Hi im maddie im only in 5th grade tgo but it says to express nine thousandsths as a decimal

Mathematics

2 answers:

monitta3 years ago

8 0

Answer:

0.009

Step-by-step explanation:

Simply move the decimal point from nine- then move it to the right three times.

If you need any more help, do not hesitate to ask me. :)

melomori [17]3 years ago

8 0

Answer: 0.009 hope this helps.

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Answer: (0.8115, 0.8645)

Step-by-step explanation:

Let p be the proportion of people who leave one space after a period.

Given: Sample size : n= 525

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i.e. sample proportion: $\hat{p}=\dfrac{440}{525}\approx0.838$

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Formula to find the confidence interval :

$\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$0.838\pm (1.645)\sqrt{\dfrac{0.838(1-0.838)}{525}}\\\\=0.838\pm (1.645)\sqrt{0.00025858285}\\\\=0.838\pm (1.645)(0.01608)\\\\= 0.838\pm0.0265\\\\=(0.838-0.0265,\ 0.838+0.0265)\\\\=(0.8115,\ 0.8645)$

Hence, a 90% confidence interval for the proportion of people who leave one space after a period: (0.8115, 0.8645)

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3 years ago

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cestrela7 [59]

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3 years ago

Hi im maddie im only in 5th grade tgo but it says to express nine thousandsths as a decimal​

Hi im maddie im only in 5th grade tgo but it says to express nine thousandsths as a decimal