Question

In: Statistics and Probability

Using the scores of 30 students on a statistics test determine the range. 75 52 80...

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

Solutions

Expert Solution

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

Hope you like the solution. Thank you


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