8. Glass Garbage Generation A survey found that the American family generates an average of 17.2 pounds of glass garbage each ye
1 answer:
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800,000 or eight hundred thousand.
<h3>Further explanation</h3><u>Problem:</u> The given number is 826,140.
<u>Question:</u> What is the value of the digit 8?
<u>The Process:</u>
This is a problem with place value.
Let us set the place values from 826,140 consecutively as follows.
- In the thousands period: 8 hundred thousands, 2 ten thousands, 6 one thousands.
- In the units period: 1 hundreds 4 tens 0 ones.
Let us say in word form: eight hundred twenty-six thousand six hundred forty.
Hence, the value of the 8 in the numbers 826,140 is 800,000 or eight hundred thousand.
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<u>Extra:</u>
What is the value of the digit 6 in the numbers 826,140? The answer is 6,000 or six thousand.
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<u>Notes:</u>
Recall that the digits in large numbers are in groups of three places, i.e.,
- hundreds,
- tens, and
- ones (or units).
The groups are called periods, i.e.,
- millions period
- thousands period
- ones or units period
Commas are typically used to separate the periods.
<h3>Learn more</h3>- Some similar problems brainly.com/question/106975 and brainly.com/question/547255
- What 3 digits are in the units period of 4,083,817 brainly.com/question/558692
Keywords: a website had 826,140 hits last month, what is the value of the 8, digit, the units period, a large number, standard form, millions, thousands, hundreds, tens, ones, the place value
Answer:
The first student, with 20 measurements, will have the more precise interval due to the larger sample size.
Step-by-step explanation:
Margin of error of a confidence interval:
The margin of error of a confidence interval has the following format:
In which z is related to the confidence level, s to the standard deviation and n to the sample size.
The margin of error is inversely proportional to the square root of the sample size, which means that a larger sample will lead to a lower margin of error, that is, to a more precise interval.
In this question:
One student will use 5 measurements, other 20. The first student, with 20 measurements, will have the more precise interval due to the larger sample size.