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Eight trials are simulated. The results are shown in the table.

What is the estimated margin of error, using standard deviation?



Enter your answer, rounded to two decimal places, in the box.

Eight trials are simulated The results are shown in the table What is the estimated margin of error using standard deviation Enter your answer rounded to two de class=

Respuesta :

phyozayaraung4

The answer will be 3.33

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MathPhys

Answer:

6.22

Step-by-step explanation:

First find the mean:

μ = (105+104+110+112+114+108+108+109) / 8

μ = 108.75

The standard deviation is then:

σ² = [(105-108.75)²+(104-108.75)²+(110-108.75)²+(112-108.75)²+(114-108.75)²+(108-108.75)²+(108-108.75)²+(109-108.75)²] / 8

σ² = 77.5 / 8

σ = 3.11

Margin of error is ±2σ, so ME = ±6.22.

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