The probability that a new pen writes poorly is 0.14. The buyer chooses one pen.
July 27, 2021 | education|
The probability that a new pen writes poorly is 0.14. The buyer chooses one pen. The probability that this pen writes well is 0.14.
Overall probability – 1
The probability that the pen writes poloho is 0.14
The probability that the pen writes well is x
Let’s make the equation:
0.14 + x = 1
x = 1 – 0.14 (We transfer the unknown in one direction, and the known in the other)
x = 0.86
Answer: The probability that the pen writes well is 0.86
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