Write out a graph love. Visuals are super helpful. Mark the points. Then count between them :))
Answer: 0.8
Step-by-step explanation:
Let's assume that 5 puzzles were solved in 5mins. That is, 1min for each puzzle to be solved.
From our assumption, our sample size will be 5.
The probability that a subject will solve more than 1 puzzle will be number of occurrence from 2 to 5 which is 4.
This gives: 4/5 = 0.8 to one decimal place.
Addition elimination.
This method is used to eliminate one of the two variables in the equations. This makes it easier to solve for the remaining variable.
This question is confusing, was there a graph or something with it?