The experimental probability to choose card 1 (15/125) is 10 less than the theoretical probability which is 25/125.
Answer:
yes, the centroid is where the medians meet
<em>hope this helps!</em>
<em>have a great day :)</em>
Answer: x = 0; x=10
Step-by-step explanation:

Hope this helps!
Answer: 17 patients stayed for longer than 10 minutes.
Step-by-step explanation:
Let x represent the number of patients that stayed for longer than 10 minutes.
The doctor charges $21.80 for consultations that last less than 10 minutes and $27.50 for those that last longer than 10 minutes. Yesterday the doctor earned $1077.90. If 28 consultations lasted less than 10 minutes, it means that
28 × 21.80 + x × 27.50 = 1077.90
610.4 + 27.5x = 1077.9
27.5x = 1077.9 - 610.4
27.5x = 467.5
x = 467.5/27.5
x = 17