When provided with the unscrambled solutions to anagrams, people underestimate the difficulty of solving the anagrams.

This is true. The phenomenon is called hindsight-bias, a phenomenon which occurs when one overestimates his/her ability to have predicted an event when he/she already knows the outcome.

The statement is correct because if there is a bunch of noise around you and you are focusing on the noise you will not comprehend your questions and lessons nor will you be able to get the proportion information you need and you will likely spend many more hours on work than normal than if you could ignore the sound

My favorite animal when i was a kid would be a dog