A quality controller inspected units of a product and rejected 150 units due to defects. Find the experimental probability that a unit will pass inspection?

Answer 1

To find the experimental probability that a unit will pass inspection, we need to divide the number of units that passed inspection by the total number of units inspected.

Total number of units inspected = 150 (rejected) + X (units that passed)

So, X = Total number of units - Rejected units = Total number of units - 150

Let's say the total number of units inspected is 400.

Therefore, X = 400 - 150 = 250

Now, the number of units that passed inspection is 250.

Experimental probability = Number of units that passed inspection / Total number of units inspected
= 250 / 400
= 0.625

Therefore, the experimental probability that a unit will pass inspection is 0.625 or 62.5%.