Arandomly selected sample of 500 college students was asked whether they had ever used the drug ecstasy. sixteen percent (16% or 0.16) of the 500 students surveyed said they had. which one of the following statements about the number 0.16 is correct?

a - it is a population proportion.

b - it is a margin of error.

c - it is a sample proportion.

d - it is a randomly chosen number.

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Could someone with number 1 and 2

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.