University:
California State University, Northridge
Course:
MATH 105 | Pre-Calculus II
Academic year:

2023
Views:

381

Pages:

1
Author:

Ridwan M.

TI-83, 84 Calculator Instructions for Statistics: 1. Entering Data Data points are stored in Lists on the TI-83/84. If you haven't used the calculator before, you may want to get rid of everything that was there. You do this by pressing 2nd [MEM] (above the + sign), select [4:ClrAllLists] and press ENTER twice. Then press STAT and highlight [5:SetUpEditor] and press ENTER twice. You will not have to do this every time that you want to enter a list, but it's a good idea to do it every once in a while. Press STAT, select [EDIT... ] this puts you into the List Editor. You will see columns with L1, L2,... going across the top. You can store 6 different sets of data here. Now enter the data pressing ENTER after each data point. After the last data point press ENTER then QUIT. The data is now stored in L1. You can store data in any of the other lists by scrolling across in the list editor. 2. How to find the mean, standard deviation, and the five-number summary of a data set: • First enter your data set into one of the lists: STAT EDIT1: Edit… This menu takes you to the lists. If you want to delete the numbers in one of your lists, for example in L1, go up with your arrow and highlight L1. Then press CLEAR and ENTER. So enter your data list into one of your lists. • To find the statistics: STATCALC1: 1-Var Stats In your window you should see 1-Var Stats Now your calculator waits for you to tell where your list is. So if your data set is in L1, enter L1 (2nd key 1). Push ENTER. • You should see the following statistics: o x mean o the sum of the data ∑x o o o o o o o o o ∑x 2 Sx σx n minX Q1 Med Q3 maxX the sum of the squared data standard deviation of the sample standard deviation of the population sample size the minimum of the data set first quartile median third quartile the maximum of the data set