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dangina [55]
3 years ago
14

Which of the following must also be known in order to compute the standard deviation?A) ModeB) MeanC) RangeD) Median

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
8 0

Answer:

B) Mean

Step-by-step explanation:

Standard Deviation is the measure of the amount of variation or dispersion of a set of values. Standard Deviation is represented by lower case Greek alphabet sigma σ. Standard Deviation is the square root of variance. Variance is the average of the squared differences or variation or dispersion from the Mean. Therefore, to compute standard deviation, the mean of the given data must be known.

    Standard Deviation, σ =  \sqrt{Variance}

                     σ = \sqrt({\frac{1}{N-1}} ∑_{i = 1}^{N}(x_{i} - X)^{2})

where

x_{1},x_{2},x_{3}, ...x_{N}, are the values of the sample observed,

X is the mean value of these observations, and

N is the number of observations in the sample.

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The possible outcomes for tossing a coin four times are shown below.
valentinak56 [21]

Step-by-step explanation:

The probability of getting exactly four heads is 1/16.

There are 16 different posible outcomes and only 1 is all heads.

That makes the answer 1 out of 16 or 1/16.

<h3><u><em>Please mark this as brainliest,     Appreciate it!!</em></u></h3><h3><u><em>Thank you !!! </em></u></h3><h3><u><em>: )</em></u></h3>
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Determine the x- and y- intercepts for the graph defined by the given equation.<br> y = 7x + 3
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Answer:

 intercept is 3 

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NEED HELP
blagie [28]

Answer:

Range: [-7, 8]

General Formulas and Concepts:

<u>Algebra I</u>

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Step-by-step explanation:

According to the graph, our y-values span from -7 to 8. Since both are closed dot, they are included in the range:

Range: [-7, 8]

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