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2 years ago

What is the answer 3/18 + 7/18= ???

Mathematics

1 answer:

torisob [31]2 years ago

6 0

Answer:

10/18

Step-by-step explanation:

3/18 +7/18 =10/18

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Can someone please help me quick I have no Idea what this means and it is due tomorrow

Tems11 [23]

12563 is the correct answer

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3 years ago

Question 4 options: Find the mean and standard deviation for a binomial distribution with 680 trials and a probability of succes

lys-0071 [83]

Answer:

Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 680 trials

r = number of success

p = probability of success which in our question is 0.55

So, it means X ~ $Binom(n=680, p=0.55)$

Now, we have to find the mean and standard deviation of the given binomial distribution.

Mean of Binomial Distribution is given by;

E(X) = n $\times$ p

So, E(X) = 680 $\times$ 0.55 = 374

Standard deviation of Binomial Distribution is given by;

S.D.(X) = $\sqrt{n \times p \times (1-p)}$

= $\sqrt{680 \times 0.55 \times (1-0.55)}$

= $\sqrt{680 \times 0.55 \times 0.45}$ = 12.97

Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

3 0

3 years ago

How do i graph the lines when the equations aren’t in slope intercept form????

jekas [21]

Slope-Intercept Form: y=mx+b

Standard Form: ax+by=c

Point- Slope: (y-y1)= m(x-x1)

There are multiple answers to your question-

If you are only missing b(the y-intercept) but are given a set of points, plug the points into x and y and solve for b.
If you are only missing the slope(m) but are given a set of points, plug the points into x and y and solve for m.
If you are given the standard form/point-slope form, change the equation to slope intercept form.
If you are given an complete form(there is an x and y; no missing variables), but are not sure what it is, plug in some numbers in x to find y, then graph.

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2 years ago

I need help factoring polynomial 3h9^-192h^6. I don't know where to begin.

Elden [556K]

First, pull out the GCM from the two terms: 3x^6(x^3-64)
Then factor the remains using the difference of cubes: 3x^6(x-4)(x^2+4x+16)

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3 years ago

Which of the following describes bias that may arise from the results?

velikii [3]

Answer: I think A
Epian:

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2 years ago