A bag contains 950 marbles. Some are red and some are blue. A student reached into the bag and pulled out a random sample of 20 marbles. He recorded that 11 were blue and 9 were red. If this is a representative sample, about how many marbles out of 950 are blue?
2 answers
About 476 marbles out of 950 are blue.
AAAaannndd the bot gets it wrong yet again!
11/20 * 950 = 522.5
11/20 * 950 = 522.5