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gregori [183]
4 years ago
9

For a binomial distribution the Mean is equal to np and the Variance is npq.

Mathematics
1 answer:
lilavasa [31]4 years ago
7 0

Answer:

7.44

Step-by-step explanation:

formula for SD is \sqrt{npq} since we dont have q, we find q by (1-p)

so now its \sqrt{np(1-p)} or \sqrt{346*0.2*(1-0.2)}

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H(x)=x•2+1 k(x)=x-2<br> (H+k)(2)
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Is it a true or false? If yes, the answer is false

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7 0
3 years ago
Write the equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3
Inga [223]

Answer:

The equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3 is:

\mathbf{y=-\frac{2}{3}x+1}

Step-by-step explanation:

We need to write equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3.

The equation for slope-intercept form is: y=mx+b

where m is slope and b is y-intercept.

We are given slope m = -2/3 and we need to find y-intercept i.e b to write equation of line.

Using point (3,-1) and slope m=-2/3 we can find y-intercept i.e b

y=mx+b\\-1=-\frac{2}{3}(3)+b\\-1=-2+b\\b=-1+2\\b=1

So, y-intercept b = 1

The equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3 is:

y=mx+b\\\mathbf{y=-\frac{2}{3}x+1}

7 0
3 years ago
the selling price for a refrigerator is 584 if the mark up is 25% of the dealers cost, what is the dealers cost of the refrigera
tia_tia [17]
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5 0
4 years ago
Read 2 more answers
Describe the zero vector (the additive identity) of the vector space. P3 (No Response) (No Response) x (No Response) x2 (No Resp
blsea [12.9K]

Answer:

\mathbf{0+0x+0x^2+0x^3}

Step-by-step explanation:

Zero vector are those vectors whose norm is zero and whose direction and direction are undefined. However, they are vector, which posses zero length and no particular direction.

It is the vector of coordinates (0,0). Or, it is defined as the vector of length or zero modulus. The definition of a zero vector is a useful mathematical convention for solving vector equations. It plays the role of the neutral element for the addition of vectors. In a sense, it is an anomaly because it has no direction or meaning, but it is handy from the point of view of vector algebra.

From the question given :

The additive identity of the zero vector in the vector space can be written as:

\mathbf{0+0x+0x^2+0x^3}

8 0
4 years ago
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