TO solve this question on "how large of a sample must Beth have to get a margin of error less than 0.04", we will use the margin of error formula:
Here, for a 80% confidence level,
(given)
Thus, margin of error, E=0.04
rearranging we get:
Plugging in gives us:
Thus, Beth's sample for the true proportion of high school students in the area who attend their home basketball games must have 256 students.
Answer:5x+3=y
Step-by-step explanation:$5 times the number of hours(x) plus the $3 fee equals the total cost(y).Please mark as Brainliest. I will appreciate it.