3 years ago

Plz help me fast plz

Mathematics

2 answers:

rusak2 [61]3 years ago

8 0

Answer:

Step-by-step explanation:

allochka39001 [22]3 years ago

7 0

Answer:

13. i may be wrong im not sure

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On the average,1% of a specific engine componentis found to not perform to standards when tested at the engine assembly plant. F

sasho [114]

Answer: 0.07938

Step-by-step explanation:

Let X be a binomial variable that represents the components of a specific engine.

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$P(X=x)=\ ^nC_xp^x(1-p)^{n-x}$

Sample size : n= 100

If more than two are found to be non-performing the entire shipment is returned.

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$=1-(P(X=0)+P(X=1)+P(X=2))\\\\=1- (^{100}C_{0}(0.01)^0(0.99)^{100}+^{100}C_{1}(0.01)^{1}(0.99)^{99}+^{100}C_{2}(0.01)^{2}(0.99)^{98})\\\\=1-((0.99)^{100}+(100)(0.01)(0.99)^{99}+\dfrac{100!}{2!98!}(0.01)(0.99)^98)\\\\=1-(0.36603+0.36973+0.18486)\\\\=1-(0.92062)\\\\=0.07938$

So, the probability that a shipment is returned = 0.07938

3 0

4 years ago

Please may I have some help thank you x

VARVARA [1.3K]

Answer:

I think x=2 because

3x4=12

12×2=24

×=2

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3 years ago

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