What's the interquartilr range of 78,88,82,57,98,68,78?

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?

Simplify the expression 10/11(22z) + (a+5) -1

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars