Answer:
Part A:
x is a binomial Random Variable.
Part B:
Value of p=0.8
Value of n=20
Part C:
P(X=15)=0.17456
Part D:
P(X≥15)=0.80417
Part E:
E(x)=16
E(x) tells us that out of 20 tracks the SBIRS will detect from 16 tracks.
Step-by-step explanation:
Part A:
Binomial Distribution is used because the number of tracks and the probability to find the intruding object is constant for all tracks
It means:
x is a binomial Random Variable.
Part B:
Value of p=0.8
Value of n=20
Part C:
x=15
By solving above Expression:
P(X=15)=0.17456
Part D:
P(X≥15)=P(X=15)+P(X=17)+P(X=16)+P(X=18)+P(X=19)+P(X=20)
P(X=15)=0.17456
Now, Adding Probabilities:
P(X≥15)=0.80417
Part E:
Mean Distribution:
E(x)=n*p
E(x)=20*0.8
E(x)=16
E(x) tells us that out of 20 tracks the SBIRS will detect from 16 tracks.
Answer:
200
Step-by-step explanation:
Let x and 2x be the number of red tiles and blue tiles respectively.
x + 2x = 600
3x = 600
=> x = 200
No. of red tiles = 200
No. of blue tiles = 2(200) = 400
Answer:
Step-by-step explanation:
Given
Equations are and
take
Put the value of y in another equation
Put the value of x in y
Hence,
Answer:
It is A I took it but I am not sure
Step-by-step explanation:
Answer:
3/1
Step-by-step explanation: