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  • How to use my TI - 83 to find standard deviation?

    I have lost the owners manual and I know the equation and can do it by hand but what a pain to do so. Can you take me through the steps using this small data set? (5,15,20,10,10). What I really need is the sequence of buttons to push. Thanks.

    3 AnswersMathematics8 years ago
  • Bases are loaded with 1 out. Batter hits a foul pop up which is caught by first?

    base man. Runner on 3rd tags and scores before runner on first that does not tag is doubled up.

    Umpire rules the that since it was a foul ball the ball is dead with batter out, runners return to bases and thus the run does not score and there is just two outs now with the bases loaded. What is correct rulling? Is this an application of the infield fly rule?

    5 AnswersBaseball9 years ago
  • Stats - I went to play cards in a tournament. As I watched the board with information it gave a running tally?

    tally of the average number of chips each player had. At first I was a little confused on how they could know without a physical chip count and the number of players. I then realized that they could know the number of chips in the game by just taking the number of players who started the game and multiply by the number of chips each player started with. Then to calculate the average all they needed to do is divide by the number of players at any given time. This does indeed give a correct average assuming no chips have left the game (ie on the floor, someone walking out with some, etc). This to me is not conventional in determining an average. If it is conventional, does it have a specific name and use. I was thinking possibly a theoretical average which could be compared to what I call a conventional average to determine relative or percentage error. Any thoughts?

    1 AnswerMathematics10 years ago