Two percent of mobile phones produced at a factory are defective. Which of the following is a binomial experiment?
Selecting phones randomly until a non-defective phone is chosen
Selecting phones randomly until 200 defective phones are chosen
Selecting 200 phones randomly and recording whether each phone is defective
Selecting a group of phones randomly and recording the number of defective phones in the group

Question

Two percent of mobile phones produced at a factory are defective. Which of the following is a binomial experiment?
Selecting phones randomly until a non-defective phone is chosen
Selecting phones randomly until 200 defective phones are chosen
Selecting 200 phones randomly and recording whether each phone is defective
Selecting a group of phones randomly and recording the number of defective phones in the group

anonymous · Answer

IT is NOT the 1 or last one so please help its either 2 or 3 which one?

anonymous · Answer

go with C

anonymous · Answer

that will be a binomial

anonymous · Answer

Okay thank you! the last person said first one and did not explain well I got it wrong so I will do with you thanks so much

anonymous · Answer

hard to explain actually
binomial assumes that in each experiment there are only two possible outcomes
yes/no
success/fail
defective/not defective

anonymous · Answer

okay thanks

anonymous · Answer

that is what you are recording in C

anonymous · Answer

yes thanks for explaining