T wo students from a group of eight boys and 12 girls are sent to represent the school in a parade.

If the students are chosen at random, what is the probability that the students chosen are not both girls?

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

20 ! brainliest ! add and simplify your answer.