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suter [353]
3 years ago
13

The following table shows the probability of rolling the numbers 1 through 7

Mathematics
1 answer:
Marysya12 [62]3 years ago
4 0

Answer:

2.0

Step-by-step explanation:

Couldn't really understnd what you wrote but I'll assume it's the standard deviation of a fair, 7-sided die

The standard deviation is just the square root of the variance (which is just the second moment minus the first moment squared)

The first moment (AKA the average is..)

\frac{1+2+3+4+5+6+7}{7}=4

The second moment is..

\frac{1^2+2^2+3^2+4^2+5^2+6^2+7^2}{7}=20

\sqrt{20-4^2}=2

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The dimensions of a gymnastic floor are 40 ft by 40 ft. the performance floor is 1 ft less, or 39 ft, per side.
Mashutka [201]

Answer:

the square root of 3200

Step-by-step explanation:

I'm not sure if this is right, because the format of the question wasn't clear, but it sounded like we have to find the diagonal distance of the room from one corner to the opposite. If the sides are 40ft long on both sides, we can use the Pythagorean Theorem to solve this:

40^2+40^2=c^2

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inna [77]

Answer:

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3 years ago
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cluponka [151]

Answer:

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Step-by-step explanation:

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3 years ago
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Using the curve of best fit, what would be the output (y) when the input (x) is 7?
IrinaVladis [17]

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