human
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
In a classroom, there are five students: Emily, Michael, Olivia, Ethan, and Ava. The teacher has a jar filled with 20 marbles - 10 green, 5 blue, and 5 yellow. She asks the students to guess how many marbles are in the jar. Emily guesses 15, Michael guesses 18, Olivia guesses 20, Ethan guesses 25, and Ava guesses 30. The teacher then reveals that there are actually 22 marbles in the jar because she added two red marbles without telling them. What do the students think about their guesses now? Provide a very brief response.

### Response:
gpt
Emily guessed there were 15 marbles, which is lower than the actual number. Learning there are 22 might make her realize she underestimated the amount. Michael's guess of 18 is close to the real number but still a bit low, so he might feel a little disappointed he didn't guess higher. Olivia guessed exactly 20, so with the teacher's revelation of two extra red marbles, she might think her guess was close and might just have been perfect if she knew about the red marbles. Ethan guessed 25, which is over the actual count. He could think he overestimated the number of marbles but wasn't far off. Ava, who guessed 30, may realize her guess was the farthest from the actual amount, which could lead her to believe she overestimated the most.