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3 years ago

ANSWER FOR BRAINLIEST:

Mathematics

1 answer:

babymother [125]3 years ago

5 0

Answer:

cant be C because 42 is outlier

cant be A because outlier skews the median.

im pretty sure its B

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what is the difference between the mean and the median of the following distribution? {1,1,1,2,2,2,2,3,3,4,4,4,4,5,5,6,7,7,8,8,9

iren2701 [21]

The given distribution =

1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 6, 7, 7, 8, 8, 9

To find mean, we have to add the given numbers and divide it by the total number of terms given.

Here 21 total numbers given.

Mean = (1+1+1+2+2+2+2+3+3+4+4+4+4+5+5+6+7+7+8+8+9) /21

= (88)/21 = 4.19 (Approximate upto two decimal place)

Median is the middle value of the distribution.

1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 6, 7, 7, 8, 8, 9

There are 21 numbers given. So middle value is the number in the 11th position.

The number in the 11th position is 4.

So, the median of the distribution = 4

We have to find the difference between mean and median here. To find the difference we have to subtract mean and median.

Therefore, the required difference = 4.19 - 4 = 0.19

0.19 is the required answer here.

So, option b is correct.

3 0

4 years ago

Read 2 more answers

Use calculus to find the volume of the following solid S:

Sveta_85 [38]

I assume the base of S is the disk centered at the origin, or x² + y² ≤ r². Solving for y gives two solutions corresponding to the upper and lower halves of the circular boundary,

$x^2+y^2 = r^2 \implies y = \pm \sqrt{r^2-x^2}$

and the vertical distance between them - i.e. the side length of each cross section - is

$\sqrt{r^2-x^2} - \left(-\sqrt{r^2-x^2}\right) = 2\sqrt{r^2-x^2}$

Then the volume of each square cross section 4 (r² - x²) ∆x, and the volume of S is

$\displaystyle \int_{-r}^r 4(r^2-x^2) \, dx$

By symmetry, this is the same as

$\displaystyle 8 \int_0^r (r^2-x^2) \, dx$

which gives a volume of

$\displaystyle 8 \int_0^r (r^2-x^2) \, dx = 8 \left(r^3 - \frac{r^3}3\right) = \boxed{\frac{16r^3}3}$

4 0

3 years ago

I need help pleaseeee

Law Incorporation [45]

Answer:

Step-by-step explanation:

This expressions equals $\sqrt{(x-2)^{2}$

You can simplify to absolute value of x-2 when x is less than 2

8 0

3 years ago

The slope of the line below is ___.

worty [1.4K]

Answer:

Step-by-step explanation:

The slope of a horizontal line is 0.

/ is a positive slope

\ is a negative slope

A horizontal line has a slope of 0

A vertical line has an undefined slope.

You can verify this by using the slope formula

$m=\frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

m = $\frac{-3 -(-3)}{-11-4}$

m = $\frac{0}{-15}$

8 0

2 years ago

I need help............

Alex787 [66]

Not sure if what the question exactly wants, but here you go lmk.

3 0

3 years ago