3 years ago

You want to know the type of music listened to by 15- to 20-year-olds. Which of the following surveys is biased?

1 answer:

6 0

Arguably, all of them are at least somewhat biased, but the most biased would be surveying people 15 to 20 years old leaving a concert because being at a concert would be highly correlated with liking the type of music played at that concert.

You might be interested in

Related subtraction fact for 7+6=13

Svet_ta [14]

13-6=7 or 13-7=6 Hope this helps you

4 0

3 years ago

Read 2 more answers

Use a geometric model to factor x2 - 9 by following these steps:

Finger [1]

Answer:(x-3) (x+3)

Step-by-step explanation:

4 0

3 years ago

4(a + 2) = 14 – 2(3 – 2a) –2 –1 no solution all real numbers

Ray Of Light [21]

All real numbers.

$\boxed{TRUE}$

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

Expand: 4(a+2)=4a+8

Expand again: 14-2(3-2a)=4a+8

4a+8=4a+8

You subtract by 8 from both sides of an equation.

4a+8-8=4a+8-8

Simplify.

4a=4a

Then, subtract by 4a from both sides of an equation.

4a-4a=4a-4a

Finally, simplify.

4a-4a=0

0=0

True

All real numbers is the final answer.

Hope this helps you!

Have a nice day! :)

4 0

3 years ago

Haylie and Justin went camping with their families for 7 days. They each took their own bottles of water. Haylie drank 6 bottles

trasher [3.6K]

Haylie took 48 bottles of water on the trip.

4 0

3 years ago

A surveyor measures the angle of elevation to a point on a mountain, that is 6 miles away, to be 15 degrees. The vertical change

cricket20 [7]

You can draw a right triangle with the informatio.

The vertical change in elevation (unknown) is the opposed leg to the angle 15°

The distance from the surveyor to the point vertically below the point on the mountain is the adjacent leg = 6 miles.

Then tan(15°) = x / 6 => x = 6tan(15) = 1.61 miles

Answer: 1.61 miles

6 0

3 years ago

Read 2 more answers