Pls help
what are two ways you can tell that two ratios form a proportion?

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1