A box contains 10 fuses. Eight of them are rated at 10A andthe other two are rat

Question

A box contains 10 fuses. Eight of them are rated at 10A andthe other two are rated at 15A. Fuses are randomly selectedfrom the box, one by one, until a 15A fuse is selected.      What is the probability that morethan three fuses are selected from the box? A box contains 10 fuses. Eight of them are rated at 10A andthe other two are rated at 15A. Fuses are randomly selectedfrom the box, one by one, until a 15A fuse is selected.      What is the probability that morethan three fuses are selected from the box?

Explanation / Answer

the P(x=3)=(8/10)*(7/9)*(1/2)=56/180 therefore: P(X>3)=1-56/180=124/180

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.