Understanding Error Intervals: Finding the Range of Exact Values

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Mathematics
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9th - 10th Grade
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of an error interval?
To calculate the average of a set of numbers
To round numbers to the nearest whole number
To determine the possible range of exact values from a rounded number
To find the exact value of a number
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the flour weight example, what is the significance of 23.65 grams?
It is the exact weight of the flour
It is the upper bound of the error interval
It is the lower bound of the error interval
It is the average weight of the flour
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't the exact weight of the flour be 23.64 grams?
Because it would be rounded up to 23.7 grams
Because it would be rounded down to 23.7 grams
Because it would be rounded down to 23.6 grams
Because it would be rounded up to 23.8 grams
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the upper bound for the flour weight example?
23.74 grams
23.73 grams
23.75 grams
23.76 grams
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the term 'lower bound' refer to?
The exact value
The average value
The minimum possible value
The maximum possible value
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of error intervals, what is an 'upper bound'?
The average of all possible values
The exact value of the measurement
The lowest value that can be rounded up to the given number
The highest value that can be rounded down to the given number
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the upper bound determined for Angela's height?
By finding the exact height of Angela
By averaging the possible heights
By finding the closest number that rounds down to 150 cm
By finding the closest number that rounds up to 150 cm
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