A chemistry professor tells the class that a weak solution will produce a brightness of less than 500 lumens. She then randomly assigns each lab group one of the solutions listed in the table.
What is the probability that Hannah and her lab group will receive a strong solution?
Strong or Weak Solutions Based on the Light Bulb Experiment
A solution is said to be strong or weak based on whether or not it can conduct electricity. If a solution contains a large number of ions, it will conduct electricity more easily. Therefore, the stronger the solution, the brighter the lightbulb (the more lumens it produces).
An experiment was set up with a light bulb in order to test if a variety of solutions were able to conduct electricity. The results are shown in the following table.
A. 10%
B. 20%
C. 40%
D. 60%
