Answer:
P(x) = 8Cx * p^x * (1 - p)^(8 - r) ; r = 0, 1, 2
Step-by-step explanation:
Given that:
Total Number of cameras (n) = 8
Defective cameras = 4
X: number of defective cameras
For a binomial distribution :
P(x) = nCx * p^x * (1 - p)^(n - x)
Probability of success (p) on each trial is the same = (total number of samples / number of defective samples) = 8/4 = 0.5
If 2 samples are chosen at random :
Then, the binomial probability distribution will be :
P(x) = 8Cx * p^x * (1 - p)^(8 - r) ; r = 0, 1, 2
You need to provide a picture of the data or else nobody can solve it.
This is an isosceles triangle because the picture shows it has two equal sides. Isosceles triangles have two equal angles.
The sum of all the angles of a triangle = 180º.
We can use this equation to solve for x:
2x + 54 = 180.
- 54 -54 Subtract 54 from both sides.
2x = 126
/ 2 /2 Divide 2 from both sides to isolate x.
x = 63º
Let's check! 63 + 63 + 54 = 180? YUP!
Maybe a square that is 4 on every side
If you round 4.135 it is 4.14 therefore 4.14 is less than 4.23
