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3 years ago

Why is the standard deviation usually preferred over the range?

1 answer:

4 0

Standard deviations, σ, is generally preferred over range. Reason being, it is calculated from all the data and when there is outliers it will not be impacted as much as the range. It is great to not also that, The IQR is preferred to the standard deviation when the distribution is very highly skewed or when there are severe outliers, because the IQR is less sensitive to this features than standard deviation.

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3 years ago

How do you model 3x= -12 using algebra tiles

alexira [117]

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4 years ago

By the square property, if b is a real number , and a2=b, then a=

Serggg [28]

Answer:

$a=\sqrt{6},\:a=-\sqrt{6}$

Step-by-step explanation:

Given

b is a real number

$a^2=b$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

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Therefore,

$a=\sqrt{6},\:a=-\sqrt{6}$

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3 years ago

Read 2 more answers

Is 10/40 7/21 13/26 or 3/18 equivalent to 5/15

Kisachek [45]

Answer:

7/21 is equivalent to 5/15

Step-by-step explanation:

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3 years ago

David and Carlo ran laps to train for the long-distance running team. The ratio of the number of laps David ran to the number of

weeeeeb [17]

Answer:

Carlo ran 33.3% of the miles.

Step-by-step explanation:

It sounds like David ran 2 laps for every 1 lap that Carlo ran. So, for every 1 mile that Carlo ran, David ran 2 miles, which means if you add both miles together: 1 mile (Carlo) + 2 miles (David) = 3 miles, that Carlo ran 1/3 of the miles, and David ran 2/3 of the miles. In percentages, it means Carlo ran 1/3=0.333 or 33.3% and David ran 2/3=0.666 or 66.6%

8 0

3 years ago

Why is the standard deviation usually preferred over the​ range?

Why is the standard deviation usually preferred over the range?