The geometric average of -12%, 20% and 25% is _________.

(07.04 LC) Mellie is conducting a test on mold spores on bread. She uses 6 slices of bread to compare two strains of mold. She applies one strain to the left side of the bread and one strain to the right side. She flips a coin to decide which strain goes on the right side of the bread. The mold spores that appear on each side are counted and she records them in a table. Bread Number of Spots for Strain 1 Number of Spots for Strain 2 1 30 19 2 21 17 3 15 15 4 13 12 5 6 9. 6 8 4 If Mellie is to perform an appropriate t-test to determine if there is a mean difference between the number of spots per piece of bread produced by the two strains, how many degrees of freedom should she use? 4 10 12 5

(a) Suppose I have a bag with 4 marbles. One is red and 3 are green. Pick one marble, note the color and then put it back and pick a second marble. Find P(Both Red) = Explain your reasoning. P(Both Green) = %3D %3D

A population of 600 rabbits has 300 births and 175 deaths in a year in which 50 rabbits move into the area and 25 rabbits move out of the area. What is the Percentage Population Change? * 50% 250% 25% 0.5%