The points plotted below are on the graph of a polynomial. Some of the roots to this polynomial are integers. Which of the follo
wing x-values are roots of the polynomial? Check all that apply.
A. x = -2
B. x = -4
C. x = -3
D. x = -5
E. x = 0
F. x = 1
A. x = -2
B. x = -4
C. x = -3
D. x = -5
E. x = 0
F. x = 1
1 answer:
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Answer:
a. P(x = 0 | λ = 1.2) = 0.301
b. P(x ≥ 8 | λ = 1.2) = 0.000
c. P(x > 5 | λ = 1.2) = 0.002
Step-by-step explanation:
If the number of defects per carton is Poisson distributed, with parameter 1.2 pens/carton, we can model the probability of k defects as:
a. What is the probability of selecting a carton and finding no defective pens?
This happens for k=0, so the probability is:
b. What is the probability of finding eight or more defective pens in a carton?
This can be calculated as one minus the probablity of having 7 or less defective pens.
c. Suppose a purchaser of these pens will quit buying from the company if a carton contains more than five defective pens. What is the probability that a carton contains more than five defective pens?
We can calculate this as we did the previous question, but for k=5.