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 $p=0.9,n=5$

Let x be the number of radar sets that will detect the plane.

We have to find $P(x=4)$

$P(x=4)=\binom{5}{4}0.9^{4}(1-0.9)^{5-4}$

$=5\times 0.6561 \times 0.1$

$=0.3281$

Therefore, the probability that exactly four sets will detect the plane is 0.3281

7 0

3 years ago

Solve the equation <br> Y +3 = -y + 9

sukhopar [10]

Answer:

The answer is 3.

Hope it helps..

4 0

2 years ago

Read 2 more answers

Help me for brainlist please

Nadusha1986 [10]

Answer:

C 80in^2

Step-by-step explanation:

Multiply 12*3*2 for the area of both sides of the H to get 72

For the middle multiply 2*4 to get 8

72+8=80

7 0

3 years ago

Alex has four books of different sizes which he wishes to place on a bookshelf. Unfortunately, the bookshelf has a conspicuous h

vredina [299]

18, you have 3 choices for the bottom because you can't use the small one, 3 choices for the next because you can now use the small one, 2 for the next and finally 1. You multiply all of them to get 18

6 0

3 years ago