Question

If the median of the score distribution on this pop quiz is more than 170, the teacher will drop the next pop quiz. The pop quiz scores followed this distribution: {180, 175, 163, 186, 153, 194, 198, 183, 187, 174, 177, 196, 162, 185, 174, 195, 164, 152, 144, 138, 125, 110}. What is the median of the distribution? 168.86 170.78 183.23 174.50 180.56

Answer 1

Arr arrange the 22  scores in ascending order. The median will be the 'middle'  2 scores which is the mean of the 11th and 12th score.

The middle 2  scores are 174 and 175 so the median = 174.50.