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zaharov [31]
3 years ago
5

Antwan wants to know how often the residents in his neighborhood go to the beach. Which sampling method will give valid results?

Mathematics
2 answers:
Advocard [28]3 years ago
8 0

Answer:

Answer: D

Step-by-step explanation:

A) he only ask the people most likely to go

B) only his family not his neighborhood

C) Voluntary so it wont be accurate as much

D) Makes the most sense with all of the above

hes is using Random sampling is a procedure for sampling from a population in which (a) the selection of a sample unit is based on chance and (b) every element of the population has a known, non-zero probability of being selected. his entire neighborhood to see how often the people there go to the pool

Systematic sampling: is a type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval. This interval, called the sampling interval, is calculated by dividing the population size by the desired sample size.

saw5 [17]3 years ago
4 0

Answer:

I think D would be the answer.

Step-by-step explanation:

The most people would see it on the website, making it, if you ask me, the most likely answer.

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What is the value of 3 in the figure shown below?
NeX [460]

9514 1404 393

Answer:

  32

Step-by-step explanation:

Angle E is congruent to angle C, so is the value required to make the sum of angles in triangle ABC be 180°.

  ∠E = 180° -118° -30° = 32°

The value of x is 32.

7 0
3 years ago
Plz plz help urgently ❤️
Musya8 [376]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

Angles in a triangle add up to 180°

Since it's a right angled triangle one of it's angles is 90°

So for angle F we have

F + 25 + 90 = 180

F = 180 - 115

<h3>F = 65°</h3>

To find GH we use tan

tan 25 = FG / GH

FG = 7m

tan 25 = 7 / GH

GH = 7 / tan 25

<h3>GH = 15.0 m</h3>

To find FH we use sine

sin 25 = FG / FH

sin 25 = 7 / FH

FH = 7/sin 25

<h3>FH = 16.6 m</h3>

Hope this helps you

4 0
3 years ago
Maggie answered 20 out of 25 questions correctly on a math test. What percent of the questions did she answer correctly?
andrew11 [14]

Answer:

80%

Step-by-step explanation:

20/25 = 80%

7 0
3 years ago
Read 2 more answers
The line AB is shown on the grid.
ale4655 [162]

Step-by-step explanation:

a)

first step: find the gradient slope of line AB

A(-1,-2) B(7,2)

gradient=change in y/change in x

M=[2-(-2)]/[7-(-1)

M=4/8

M=1/2

the gradient of the straight line is given by

M1*M2=-1

1/2*M2=-1

multiply both sides by the reciprocal of 1/2

2*1/2*M2=-1*2

M2= -2.

b)

first find the mind point of line AB

A(-1,-2) B(7,2)

M.P=(x1+x2)/2 ,(y+y2)/2

M.P=(-1+7)/2 ,(-2+2)/2

M.P=6/2 ,0/2

M.P=3,0

ALSO THE GRADIENT PERPENDICULAR TO LINE AB IS;

M= -2

equation of a line perpendicular to AB and passes through the midpoint of AB

Y-Y1=M(X-X1). (3,0). M=-2

y-0=-2(x-3)

y= -2x+6

6 0
3 years ago
Adam’s car traveled 465.3 miles on 16.5 gallons of gas. Which equation can be used to determine the average number of miles that
Fynjy0 [20]

Answer:

A

Step-by-step explanation:

If you want to figure out all you have to do is divide 465 by 16.5.

The only equation that shows that is the first one. In equations you need to get the X by itself so you'll have to divide to do that.

It's same if you say something like "You have 4 apples but need to divide them in 2 groups."

3 0
3 years ago
Read 2 more answers
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