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Vika [28.1K]
3 years ago
15

A 98% confidence interval is found to be (50, 60). What is the margin of error?

Mathematics
1 answer:
miss Akunina [59]3 years ago
3 0

Answer:

D. 5

Step-by-step explanation:

Mean: (50+60)/2

110/2

55

Margin of error:

60 - 55

5

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B is the midpoint of AC and AC=8r-20,and AB=3x-1<br> Find BC
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Answer:

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Step-by-step explanation:

To find these, start by setting George's age as x. This means that we can model Mary Lou's age as 2x, since she is twice as old. We can also model Kate's age as x - 2 since she is two years younger. Now we can add these 3 together and set equal to 46

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3 0
3 years ago
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