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3 years ago

Umm guys ,l don't understand this one

Mathematics

2 answers:

Sedbober [7]3 years ago

7 0

Answer:

Step-by-step explanation:

The mode is the number in a set of data that appears most often.

The data set is:

2, 3, 6, 5, 4, 3, 4, 6, 3

Examine the data set. Count how many times each number shows up.

The number 2 shows up once.

The number 3 shows up three times.

The number 4 shows up twice.

The number 5 shows up once.

The number 6 shows up once.

The number 3 appears most often, at three times. Therefore, the mode of the data is 3.

larisa [96]3 years ago

3 0

Answer:

Step-by-step explanation:

The mode is the value that appears most often in a set of data. The mode of a discrete probability distribution is the value x at which its probability mass function takes its maximum value. In other words, it is the value that is most likely to be sampled.

Hope this helps!

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3 years ago

Read 2 more answers

Can I get help with finding the Fourier cosine series of F(x) = x - x^2

trapecia [35]

Assuming you want the cosine series expansion over an arbitrary symmetric interval $[-L,L]$ , $L\neq0$ , the cosine series is given by

$f_C(x)=\dfrac{a_0}2+\displaystyle\sum_{n\ge1}a_n\cos nx$

You have

$a_0=\displaystyle\frac1L\int_{-L}^Lf(x)\,\mathrm dx$
$a_0=\dfrac1L\left(\dfrac{x^2}2-\dfrac{x^3}3\right)\bigg|_{x=-L}^{x=L}$
$a_0=\dfrac1L\left(\left(\dfrac{L^2}2-\dfrac{L^3}3\right)-\left(\dfrac{(-L)^2}2-\dfrac{(-L)^3}3\right)\right)$
$a_0=-\dfrac{2L^2}3$

$a_n=\displaystyle\frac1L\int_{-L}^Lf(x)\cos nx\,\mathrm dx$

Two successive rounds of integration by parts (I leave the details to you) gives an antiderivative of

$\displaystyle\int(x-x^2)\cos nx\,\mathrm dx=\frac{(1-2x)\cos nx}{n^2}-\dfrac{(2+n^2x-n^2x^2)\sin nx}{n^3}$

and so

$a_n=-\dfrac{4L\cos nL}{n^2}+\dfrac{(4-2n^2L^2)\sin nL}{n^3}$

So the cosine series for $f(x)$ periodic over an interval $[-L,L]$ is

$f_C(x)=-\dfrac{L^2}3+\displaystyle\sum_{n\ge1}\left(-\dfrac{4L\cos nL}{n^2L}+\dfrac{(4-2n^2L^2)\sin nL}{n^3L}\right)\cos nx$

4 0

3 years ago

If CM=15, Find DC and DM

Ghella [55]

image ????? please attach image and try again

8 0

3 years ago

Can someone answer? Please I tried everything I don’t know how to do this.

dedylja [7]

Step-by-step explanation:

-7.2(x-15.6)= -9
-7.2x+112.32= -9
-7.2x= -9-112.32
-7.2x= -121.32
x= -121.32/ -7.2
x=16.85

<h2>hope it helps.</h2><h2>stay safe healthy and happy.</h2>

4 0

3 years ago

Umm guys ,l don't understand this one​

Umm guys ,l don't understand this one