Marnie conducted an experiment using a bag of 12 marbles containing an equal number of blue, red, and green marbles. she randomly chose one marble, noted the color, and returned the marble to the bag. marnie did this for a total of 20 trials. the table below shows the results. event count blue 7 red 8 green 5 what was the experimental probability of choosing a blue marble from a bag?

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?

40 describe the outliers from the scatter plot.

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?