When those tasks would have slowed class down — the teacher might not have wanted us to spend time drawing a curve when the real lesson was interpreting it — our teachers did it for us and put it on the class TV. Calculating statistical values was also done quickly with a $17 Casio engineering calculator.
TI-83s existed, but there was a culture in my school (ironically, a private one) that graphing calculators were a status-signaling more-money-than-sense thing. Too bad that such a culture isn’t ubiquitous.
— Sent from my iPhone XS
I have tried to explain it to my wife, but she can't grok it. I'm going to have to buy one from fleaBay to get her to understand.