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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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I need the function for the volume of the box for number 1
rjkz [21]

Answer:

Step-by-step explanation:

The volume of a rectanguiar shape like this one is V = L * W * H, where the letters represent Length, Width and Height.  Here L is the longest dimension and is 28 - 2x; W is the width and is 22-2x; and finally, x is the height.  Thus, the volume of this box must be

V(x) = (28 - 2x)*(22 - 2x)*x

and we want to maximize V(x).  

One way of doing that is to graph V(x) and look for any local maximum of the graph.  We'd want to determine the value of x for which V(x) is a maximum.

Another way, for those who know some calculus, is to use the first and second derivatives to identify the value of  x at which V is at a maximum.

I have provided the function that you requested.  If you'd like for us to go all the way to a solution, please repost your question.

3 0
2 years ago
A cube with each face a different colour will fit exactly into a box in which it is packaged. In how many ways can the cube be p
dmitriy555 [2]

Answer:

362880 times

I hope this helps

4 0
2 years ago
When a trinomial is factored as (x+p)(x+q), what is the product of p and q?
Aneli [31]
<span>The answer is the coefficient of the x-tem of the trinomial</span>
7 0
3 years ago
Read 2 more answers
PLEASE HELP! my test is due in 10 minutes.. What is teh range of the relation above?
lisov135 [29]

Answer:

D) The Y value never goes above 6.

Step-by-step explanation:

7 0
3 years ago
YS is the perpendicular bisector of XYZ and YS is a shared side of XYS and ZYS. which of the following must be congrent in order
german

Answer:

The triangles SYX and SYZ are congrient so by CPCTC XY\cong YZ, XS\cong ZS and \angle X\cong \angle Z.

Step-by-step explanation:

Given information: YS is the perpendicular bisector of XYZ.

In triangle YXS and triangle YSZ,

\angle SYX=\angle SYZ                 (YS is the perpendicular bisector of XYZ)

YS=YS                                            (Common side, Reflexive property)

\angle YSX=\angle YSZ=90^{\circ}   (YS is the perpendicular bisector of XYZ)

By ASA postulate,

\triangle SYX\cong \angle SYZ

The corresponding parts of congruent triangles are congruent. so,

XY\cong YZ

XS\cong ZS

\angle X\cong \angle Z

6 0
3 years ago
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