Determine whether the sample is biased or unbiased. Explain. You want to estimate the number of people in a town who think that a park needs to be remodeled. You survey every 10th person who enters the park.

Choices:

biased; The sample is not representative of the population because people who go to a park are more likely to think that the park needs to be remodeled.

biased; The sample is representative of the population and selected at random.

unbiased; The sample is representative of the population because people who go to a park are more likely to know the park's needs.

unbiased; The sample is representative of the population, selected at random, and large enough to provide accurate data.

"unbiased; The sample is representative of the population, selected at random, and large enough to provide accurate data."

Step-by-step explanation:

Choosing the 10th person each time for a sample survey is unbiased as the chances of their opinion matching their opinion regarding the survey is highly unlikely. Hence, the data is accurate as everyone's opinion will differ throughout every 10th person.

Hope that helps!

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

answer: yard ramps with a level off platform are typically 36 feet long. truck, rather than at an angle, enabling access to those pallets at the very back of the truck. if you are using your yard ramp to convert a loading dock into a drive-in door, we even at 60 inches (5 feet) high and a 30 foot ramp, the slope of the ramp will be less

step-by-step explanation: