Answer: B.) Find the difference between the upper and lower quartiles.
Step-by-step explanation: Edgen 2020
The experimental probability can be represented as a fraction of the number of times a five was not the result over the total number of times the cube was rolled.
The answer would be 288/350 or 144/175.
Average = (A₁+A₂+A₃+A₄+A₅)/5. Since average = 20 (GIVEN), then:
20 = (A₁+A₂+A₃+A₄+A₅)/5
Or (A₁+A₂+A₃+A₄+A₅) = 20x5
(A₁+A₂+A₃+A₄+A₅) = 100