3. 14% of the vehicles driven on a bridge are SUVs. Richard, a toll collector, counts the number of vehicles until the first SUV crosses him. What is the probability he counts: a. At most 3 vehicles

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A: Solution is  given below

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A:

Q: this??

A:

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A:

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A: ∫ -∞∞f(x)=1⇒∫ -∞0f(x) + ∫0∞f(x)⇒∫ -∞00 + ∫0∞8e-8x⇒8e-8x-80∞⇒-e-∞-e0⇒-e∞≠1 this is not a pdf

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A: Yes it is a Gamma distribution with parameters (1,1)

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Q: derstand

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A:

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A: * SOLUTION :-

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Q: 7. P(Z < ) = 0.1029

A: According to policy we supposed to answer first part for remaining please repost  the question

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A: C and D are two different questions So i am solving first C