If Alex's height is given as 143.9 ± 0.1 cm, which of the following statements accurately captures this?

Question

If Alex's height is given as 143.9 ± 0.1 cm, which of the following statements accurately captures this?

Accepted Answer

Alex is (to some level of confidence) between 143.8 and 144.0 cm

Answer

Alex is certainly between 143.8 and 144.0 cm

Answer

Alex expands and contracts throughout the day by up to 0.1 cm

Answer

Alex is 143.9 cm tall

Answer

Alex is taller than 143.8 cm

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