A sample of n = 100 scores is selected from a population with mu = 80 with sigma = 20. On average, how much error is expected between the sample mean and the population mean?

What is 987654323456789 * 9870987654345678 heehehehhe

In ∆PQR, PQ = 39 cm and PN is an altitude. Find PR if QN = 36 cm and RN = 8 cm.

Find the constant of variation for this equation xy=12

Wich is the mean of the following numbers 5,6,4,6,4

Chapter 03, Review Problems, Question 59 Two gasohol mixtures are available, one with 6.35% alcohol and the other with 11.28% alcohol. How many litres of the 6.35% mixture must be added to 27.

Each newborn baby has a probability of approximately 0.49 of being female and 0.51 of being male. for a family with four children, let x = the number of children who are girls.

4^2-6 (2^x) - 16=0 solve for x

7n-4=31 so what does n equal

Solution of the inequality y>1.9

A line is parallel to the x-axis on a coordinate plane. Which best describes the slopes of the line.