The answer is B good luck bro
Answer:
Therefore the required probability is 0.15.
Step-by-step explanation:
Poisson distribution:
The Poisson distribution is the number of an event is occur within a time period.

μ= The mean
x= event.
In Poisson distribution , the average rate event per time period is constant.
12% defective parts is produced by one of the machines of the time.
μ= (12%×7)= 0.84
x= the number of defective product =2

=0.15
Therefore the required probability is 0.15.
Answer:
Triangle(C)
Step-by-step explanation:
All the Exterior Angles of a polygon add up to 360°, so: each exterior angle must be 360°n (where n is the number of sides). So, 360n=120 ; n=360/120=3 It is a triangle.
Answer:
I'm not sure but I did do it on a calculator so 1.515-1.56= -0.045
We need to find how many 1/4 groups are in 1 1/2.
I work better with decimals, so I'll just convert them into decimals. We're dividing to see how many people we need.
1.5÷0.25
6
So, you'll need 6 runners for the relay race.