The blanks are "is" or "is not"

1. The probability that a college student is under 18 years of age is 2%. 46 college students are chosen at random. X represents the number of college students who are under 18. This a binomial experiment. 2. Twenty-six Scrabble tiles (one for each letter of the alphabet) are places in a hat. Three tiles are selected at random, one after the other (without replacement). X represents the number of vowels selected. This a binomial experiment. 3. In 2013 USA Today reported that 71% of the prisoners released from Delaware prisons were convicted of a serious crime within three years of being released. 5 Delaware prisoners are chosen are random. X is the number of prisoners selected that will commit a serious crime within 3 years of being released. This a binomial experiment. 4. On Halloween, Sam collected a bag of candy. 1% of the candy was full-sized candy bars, 35% was fun-sized candy bars, and 64% was hard candy. He randomly chose 2 pieces of candy. X represents the number of fun-sized candy bars and hard candy he selected. This a binomial experiment