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4 years ago

Which describes a parameter of a population?

Mathematics

2 answers:

Klio2033 [76]4 years ago

4 0

The answer is A because everything else is a statistic. it literally has percent at the beginning of all of them

mamaluj [8]4 years ago

3 0

Answer:

A) all the golf balls produced by the Acme Company

Step-by-step explanation:

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At the school's holiday craft fair, Juan and his classmates get to make gingerbread houses. Their teacher divides a bag of licor

UkoKoshka [18]

The answer to this question is 8/4=r

5 0

2 years ago

Select all the correct descriptions for the box plot shown.

Sergeu [11.5K]

Answer:

A & C

Step-by-step explanation:

A, because all the data is going to the right, and C, because most of the numbers are between 10 and 17.

5 0

3 years ago

If the area of a circle measures 16/25 π cm2, what is the circumference of the circle in terms of π? A) 5/8 π cm B) 4/5 π cm C)

xxTIMURxx [149]

Area=pi*r^2
16/25 therefore is r^2
therefore r=4/5
circumference = 2*pi*r
8*pi/5 is the circumference, C.

3 0

3 years ago

9. Two points in the plane, A(−3,8) and ????(17,8), represent the endpoints of the diameter of a circle.

kherson [118]

Answer:

a) (7,8)

b) r = 10

c) $(x-7)^2+(y-8)^2=100$

Step-by-step explanation:

a) Given the endpoints the diameter of the circle as A(-3,8) and B(17,8)

we should realize that the center of the circle lies exactly at the midpoint of these two points. let's denote the midpoint as $(x_m,y_m)$

$(x_m, y_m) = \left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$(x_m, y_m) = \left(\dfrac{-3+17}{2},\dfrac{8+8}{2}\right)$

$(x_m, y_m) = (7,8)$

this is the coordinate of the center of the circle.

b) The radius of the circle can be easily found by using the distance formula between the center point and either of the two endpoints of the diameter.

the general distance formula is:

$r = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

in our case the equation changes to: (selecting the centre and point B)

$r = \sqrt{(x_m-x_2)^2+(y_m-y_2)^2}$

$r = \sqrt{(7-17)^2+(8-8)^2}$

$r = 10$

side note: there are more alternate ways to find the radius for e.g (you can use the distance formula between the points A and B and that'll give you the length of the diameter which you can divide by 2 to get the radius) OR (you don't need to use the distance formula at all <u>since in this particular case</u> all the coordinates lie on the same horizontal line, so by simply subtracting the two x-coordinates of the center and either of A or B)

c) the ingredients needed to make the equation of the circle are the