Well, it's hard to say. You'd have to look into the background and research about the book to determine if it's truly based on real events or if it's more of a fictional tale with some real-life inspirations.
Yes. There are many educated books based on true stories. For example, 'Educated' by Tara Westover is a memoir, which is a true story of her own life journey from growing up in a strict and isolated Mormon family in Idaho to getting an education and breaking free from the constraints of her upbringing. It's an inspiring story that shows the power of education in changing one's life.
Well, it depends. While memoirs are based on personal experiences, the author's perspective and memory can influence the telling. So, it might not be 100% objectively true.
I'm not sure. It depends on the author's intention and the nature of the content. Sometimes books labeled as 'The Educated' might draw inspiration from real events but not be a strict account of a true story.