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iren2701 [21]
3 years ago
8

If 20 were added to each of the vlaues in a data set that originally had a standard deviation of 8, the standard deviation of th

e resulting data would be 28
Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

False (I assume it's a true/false question)

Step-by-step explanation:

Standard deviation measures how spread out the data is.  If you add 8 to all the data values, the distribution of data moves to the right (on a graph) 8 units. The shifted data are no more and no less spread out than before.  The standard deviation does not change.

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What is the rate of change between the points 6,45 and 9,67.5
pochemuha

Answer:

7.5

Step-by-step explanation:

the slope m is a measure of the rate of change

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (6, 45 ) and (x₂, y₂ ) = (9, 67.5 )

m = \frac{67.5-45}{9-6} = \frac{22.5}{3} = 7.5 ← rate of change

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As an estimation we are told 5 miles is 8 km.<br> Convert 25.9 km to miles.
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x          y
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Plot these point in the graph and this will represent the inequality, shade the upper portion of the graph including the curve represented by the inequality. 
6 0
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Answer:

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Step-by-step explanation:

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