Answer:
i need context to last one :)
Step-by-step explanation:
The probability that a single radar set will detect an enemy plane is 0.9. if we have five radar sets, what is the probability that exactly four sets will detect the plane?
Solution: The given random experiment follows binomial distribution with ![p=0.9,n=5](https://tex.z-dn.net/?f=p%3D0.9%2Cn%3D5)
Let x be the number of radar sets that will detect the plane.
We have to find ![P(x=4)](https://tex.z-dn.net/?f=P%28x%3D4%29)
![=5\times 0.6561 \times 0.1](https://tex.z-dn.net/?f=%3D5%5Ctimes%200.6561%20%5Ctimes%200.1)
![=0.3281](https://tex.z-dn.net/?f=%3D0.3281)
Therefore, the probability that exactly four sets will detect the plane is 0.3281
Answer:
267/500
Step-by-step explanation:
0.534 = 534 / 1000
Simplify to 267/500