In: Statistics and Probability
Using the scores of 30 students on a statistics test determine the range. 75 52 80 96 65 79 71 87 93 95 69 72 81 61 76 86 79 68 50 92 83 84 77 64 71 87 72 92 57 98
the give data is
75 52 80 96 65 79 71 87 93 95 69 72 81 61 76 86 79 68 50 92 83 84 77 64 71 87 72 92 57 98
Range is the spread of observations in terms of distance between the Values of Selected observations.
Range is the difference between two extreme observations as
Range= Xmax-Xmin
Step1- arrange all observations in ascending order
50,52,57,61,64,65,68,69,71,71,72,72,75,76,77,79,80,81,83,84,86,87,87,92,92,93,95,96,98
STEP 2 Find maximum and minimum observation
Max or Xmax=98
Min or Xmin= 50
Step 3 Use formula to find range
Range = 98-50
=48
hence Range=48
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