Rectangles with vertices E(-4,-1),F(2,2),G(3,0),and H(-3,-3) in the axis

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?

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

Which statement shows that 6.24 is a rational number? a. 6.24 = 6.242424 b. 6.24 = 6.24 c. 6.24 = 68⁄33 d. 6.24 = 66⁄25