PLZ HELP IF WRONG ILL REPORT Best Buy wants to know whether customers liked the televisions they purchased from the store in the past year.

The store calls and asks every 4th person who bought a television within the past year whether he or she likes it.

Is this sample biased or unbiased? Please explain your reasoning! (Tell why)

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Ineed i been stuck on this question since yesterday