ANSWER:
6 points
EXPLANATION:
<u>Original readings</u>
120, 121, 122, 125, 126, 126, 129, 132, 132, 135, 137, 143, 143, 145, 148, 153, 153, 154, 164, 164, 173
The median is the 11th number (137).
<u>Additional readings added</u>
120, 121, 122, 125, 126, 126, 129, 132, 132, 135, 137, 143, 143, 145, 146, 148, 153, 153, 154, 158, 164, 164, 173
The median is the 12th number (143).
I'm not sure exactly what it means by 'points' but I think that means 143-137, which is 6 points?
