25%. With a 50% chance of it landing heads the first time, you need to multiply it by the percentage that you have that it will land on heads again, which is 50. 50% of 50 is 25, and then having it land on either heads or tails for the third time is guaranteed, so multiply that probability (100%) by the previous 25% which ends up being simply 25%
If you choose a blue marble first its the probability of 3/12 simplified to 1/3 and then the probability of choosing a red next is 5/11 as you didnt replace the one blue marble
Answer:
1393920
Step-by-step explanation:
Answer:
1st question: C
2nd question: Increasing (the slope)
3rd question: don't understand what's being asked
Step-by-step explanation:
