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Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s height is 4 feet, 2 inches.
1. Should Clare's or the doctor's measurement be considered the actual height? Explain your reasoning.


2. What was the error, expressed in inches? (Hint: 12 inches = 1 foot, so 12 is the unit rate to multiply the number of feet by)
Amount of Error = difference between Actual and estimated guess

3. What was the error, expressed as a percentage of the actual height?

Percent Error = Amount of Error x 100
Actual Measurement
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mhanifa

Answer:

  • 1. Yes
  • 2. 2 inches
  • 3. 4%

Step-by-step explanation:

  • Estimated height is 4 feet
  • Measured height is 4 feet 2 inches

1. The measurement is actual and should be considered as such. Estimate is approximate most of the time.

2. The error is:

  • 4 feet 2 inches - 4 feet = 2 inches

3. Percent error:

  • 2 inches/4 feet 2 inches × 100% =
  • 2 inches / 50 inches × 100% =
  • 0.04× 100% =
  • 4%

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