Month Weight (lbs)

Mathematics

1 answer:

alexdok [17]3 years ago

5 0

Answer:

$\boxed{\text{D. 11.6 lb}}$

Step-by-step explanation:

The mean is the sum of the weights divided by the number of weighings.

$\text{Mean}= \dfrac{13.5 + 12.5 + 10.5 + 11.2 + 11.2 + 10.8 + 9.5 + 13.4 + 11.5 + 11.8}{10}\\\\= \dfrac{115.9}{10} \approx \mathbf{11.6}\\\\\text{Heather is predicting that Sally will weigh } \boxed{\textbf{11.6 lb}}$

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Step-by-step explanation:

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