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xeze [42]
2 years ago
15

Then work backward to find the cost of 2 dvds

Mathematics
1 answer:
Marizza181 [45]2 years ago
5 0
If the cost of one DVD is $42.70, to find the price of two, multiply 42.70 by two. The price of two DVDs is $85.40.
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2 years ago
The Range Rule of Thumb roughly estimates the standard deviation of a data set as​ _______.
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Answer:

Option A)

s = \dfrac{\text{Range}}{4}        

Step-by-step explanation:

Range Rule of Thumb

  • The range Rule of thumb states that the range is four times the standard deviation.
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\text{Range = Maximum - Minimum}\\\text{s: Standard Deviation}\\\text{Range rule of Thumb:}\\\text{Range} = 4\times s\\\\s = \dfrac{\text{Maximum - Minimum}}{4}

  • Thus, the correct answer is

s = \dfrac{\text{Range}}{4}

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Georgia [21]
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6 0
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