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Shifting and Rescaling Data

Shifting and Rescaling Data. Find µ, σ and the 5-number summary for the set of data . N-spire page 1.1-1.6. Manager: add 3 to each number and find µ, σ and the 5-number summary for the new set of data.

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Shifting and Rescaling Data

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  1. Shifting and Rescaling Data .

  2. Find µ, σ and the 5-number summary for the set of data. N-spire page 1.1-1.6 Manager: add 3 to each number and find µ, σ and the 5-number summary for the new set of data. Scribe: add 50 to each number and find µ, σ and the 5-number summary for the new set of data. Speaker: subtract 7 from each number and find µ, σ and the 5-number summary for the new set of data. Gopher: subtract 200 from each number and find µ, σ and the 5-number summary for the new set of data. Compare your results with the original numbers – what pattern do you see? Create a rule for shifting data. Shifting data

  3. Find µ, σ and the 5-number summary for the set of data. N-spire page 2.1-2.6 Manager: divide by 2 each number and find µ, σ and the 5-number summary for the new set of data. Scribe: divide by 10 each number and find µ, σ and the 5-number summary for the new set of data. Speaker: multiply by 3 each number and find µ, σ and the 5-number summary for the new set of data. Gopher: multiply by 50 each number and find µ, σ and the 5-number summary for the new set of data. Compare your results with the original numbers – what pattern do you see? Create a rule for rescaling data. Rescaling data

  4. A group of students from an algebra 2 class took a test and scored as follows: 73, 81, 70, 71, 77, 76, 72, 79, 87, 93, 87, 84, 70, 72, 68, 75, 84, 79, 73, 52, 98 The median = 76 and the IQR = 12.5 The mean = 77.2 with a stdev = 9.87 a) I realized that I made a mistake on scoring the test. I gave them each 6 points too much. b) I later realized that I made a mistake and should have scored it worth more. I multiplied each score by 3 to get their new scores. N-spire page 3.1-3.3

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