Applied Statistics by Bookboon.com

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14 Consider the X array as 2, 4, 6, and 8; while the Y array to be given by 3, 5, 7, and 9. com 30 Applied Statistics Descriptive Statistics Solution:  ¦;< L L L             §  ·§  · ; ¨ ¦ L ¸  ¨ ¦

TECHNOLOGY STEP-BY-STEP Drawing Histograms and Stem-and-Leaf Plots TI-83/84 Plus The TI -83 and TI-84 do not have the ability to draw stem-and-leaf plots or dot plots. TI-83/84 Plus Histograms 1. Enter the raw data in L1 by pressing Stat and selecting 1: Edit. 2. Press 2nd Y = to access Stat-Plots menu. Select 1: plot1. 3. Place the curser on “ON” and press ENTER. 4. Place the cursor on the histogram icon (check your calculator) and press ENTER. Press 2nd Quit to exit Plot 1 menu. 5. Press Window.

It is that class with the highest frequency. The modal class is class 2.   3. , 50% above the median and 50% below the median. The definition of the median implies three steps before finding it. First we need to set the data in order, and it does not matter if the setting is done ascending or descending. Second, look up the value of n, the sample size. Third determine the observations in the middle of the array. Is n even, or is it odd? When n is an odd number, there is one middle value and it is at that point whose rank, in the array, equals (n+1)/2.

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