Which of the following is a random sample? *

Mathematics

1 answer:

Lynna [10]3 years ago

6 0

Answer:

A teacher put the names of students in a hat and pulled out 10.

Step-by-step explanation:

All the other answers had some factor which would cause the answer to lean a certain way. For example, for answer D, Rebecca sent an email, which can be only sent using the internet, to ask how long people are on the internet. All the people that got the email probably use the internet longer than an average person does, making the answer, biased.

You might be interested in

How many solutions does

Natalija [7]

$3(4x - 2) = 12x \\ 12x - 6 = 12x \\ 12x - 12x = 6 \\ 0 = 6$
The answer is no solution

3 0

2 years ago

How much more expensive is it, per pound, to buy ground beef at Store B than at Store A?

Ivahew [28]

Answer:

2.42

Step-by-step explanation:

First you need to use two points from store b to find the slope (y1-y2)/(x1-x2). I chose the first two points. (15.54-25.9)/(1.5-2.5)= 10.36. After you take another point from store b to plug into the equation y1-y2=m (x1-x2). M is the slope we just found and I used the first point.

Y1-15.54=10.36 (x1-1.5) distribute the 10.36 to the parentheses.

Y1-15.54=10.36x -15.54 get y1 by itself

Y=10.36x so store b is 10.36 a pound and store a is 7.94 a pound. 10.36-7.94= 2.42

7 0

2 years ago

Put this equation into slope intercept form 6x+12y=9

Aleksandr-060686 [28]

y = - $\frac{1}{2}$ x + $\frac{3}{4}$